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First scientific paper on 3I/ATLAS interstellar object
When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the third of its kind ever known, astronomers at Michigan State University — along with a team of international researchers — turned their telescopes to capture data on the new celestial sighting. The team rushed to write a scientific paper on what they know so far about the object, now called 3I/ATLAS, after NASA’s Asteroid Terrestrial-impact Last Alert System, or ATLAS. ATLAS consists of four telescopes — two in Hawaii, one in Chile and one in South Africa — which automatically scans the whole sky several times every night looking for moving objects. MSU’s Darryl Seligman, a member of the scientific team and an assistant professor in the College of Natural Science, took the lead on writing the paper. “I heard something about the object before I went to bed, but we didn’t have a lot of information yet,” Seligman said. “By the time I woke up around 1 a.m., my colleagues, Marco Micheli from the European Space Agency and Davide Farnocchia from NASA’s Jet Propulsion Laboratory, were emailing me that this was likely for real. I started sending messages telling everyone to turn their telescopes to look at this object and started writing the paper to document what we know to date. We have data coming in from across the globe about this object.” The discovery Larry Denneau, a member of the ATLAS team reviewed and submitted the observations from the European Southern Observatory's Very Large Telescope in Chile shortly after it was observed on the night of July 1. Denneau said that he was cautiously excited. “We have had false alarms in the past about interesting objects, so we know not to get too excited on the first day. But the incoming observations were all consistent, and late that night it looked like we had the real thing. “It is especially gratifying that we found it in the Milky Way in the direction of the galactic center, which is a very challenging place to survey for asteroids because of all the stars in the background,” Denneau said. “Most other surveys don't look there.” John Tonry, another member of ATLAS and professor at the University of Hawaii, was instrumental in design and construction of ATLAS, the survey that discovered 3I. Tonry said, “It's really gratifying every time our hard work surveying the sky discovers something new, and this comet that has been traveling for millions of years from another star system is particularly interesting.” Once 3I/ATLAS was confirmed, Seligman and Karen Meech, faculty chair for the Institute for Astronomy at the University of Hawaii, both managed the communications flow and worked on getting the data pulled together for submitting the paper. “Once 3I/ATLAS was identified as likely interstellar, we mobilized rapidly,” Meech said. “We activated observing time on major facilities like the Southern Astrophysical Research Telescope and the Gemini Observatory to capture early, high-quality data and build a foundation for detailed follow-up studies.” After confirmation of the interstellar object, institutions from around the world began sharing information about 3I/ATLAS with Seligman. What scientists know about 3I/ATLAS so far Though data is pouring in about the discovery, it’s still so far away from Earth, which leaves many unanswered questions. Here’s what the scientific team knows at this point: It is only the third interstellar (meaning from outside our solar system) object to be detected passing through our solar system. It’s potentially giving off gas like other comets do, but that needs to be confirmed. It’s moving really fast at 60 kilometers per second, or 134,000 miles per hour, relative to the sun. It’s on an orbital path that is shaped like a boomerang or hyperbola. It’s very bright. It’s on a path that will leave our solar system and not return, but scientists will be able to study it for several months before it leaves. The James Webb Space Telescope and the Hubble Space Telescope are expected to reveal more information about its size, composition, spin and how it reacts to being heated over the next few months. “We have these images of 3I/ATLAS where it’s not entirely clear and it looks fuzzier than the other stars in the same image,” said James Wray, a professor at Georgia Tech. “But the object is pretty far away and, so, we just don’t know.” Seligman and his team are specifically interested in 3I/ATLAS’s brightness because it informs us about the evolution of the coma, a cloud of dust and gas. They’ve been tracking it to see if it has been changing over time as the object moves and turns in space. They also want to monitor for sudden outburst events in which the object gets much brighter. “3I/ATLAS likely contains ices, especially below the surface, and those ices may start to activate as it nears the sun,” Seligman said. “But until we detect specific gas emissions, like H₂O, CO or CO₂, we can’t say for sure what kinds of ice or how much are there.” The discovery of 3I/ATLAS is just the beginning. For Tessa Frincke, who came to MSU in late June to begin her career as a doctoral student with Seligman, having the opportunity to analyze data from 3I/ATLAS to predict its future path could lead to her publishing a scientific paper of her own. “I’ve had to learn a lot quickly, and I was shocked at how many people were involved,” said Frincke. “Discoveries like this have a domino effect that inspires novel engineering and mission planning.” For Atsuhiro Yaginuma, a fourth-year undergraduate student on Seligman’s team, this discovery has inspired him to apply his current research to see if it is possible to launch a spacecraft from Earth to get it within hundreds of miles or kilometers to 3I/ATLAS to capture some images and learn more about the object. “The closest approach to Earth will be in December,” said Yaginuma. “It would require a lot of fuel and a lot of rapid mobilization from people here on Earth. But getting close to an interstellar object could be a once-in-a-lifetime opportunity.” “We can’t continue to do this research and experiment with new ideas from Frincke and Yaginuma without federal funding,” said Seligman, who also is a postdoctoral fellow of the National Science Foundation. Seligman and Aster Taylor, who is a former student of Seligman’s and now a doctoral candidate in astronomy and astrophysics and a 2023 Fannie and John Hertz Foundation Fellow, wrote the following: “At a critical moment, given the current congressional discussions on science funding, 3I/ATLAS also reminds us of the broader impact of astronomical research. An example like 3I is particularly important to astronomy — as a science, we are supported almost entirely by government and philanthropic funding. The fact that this science is not funded by commercial enterprise indicates that our field does not provide a financial return on investment, but instead responds to the public’s curiosity about the deep questions of the universe: Where did we come from? Are we alone? What else is out there? The curiosity of the public, as expressed by the will of the U.S. Congress and made manifest in the federal budget, is the reason that astronomy exists.” In addition to MSU, contributors to this research and paper include European Space Agency Near-Earth Objects Coordination Centre (Italy), NASA Jet Propulsion Laboratory/Caltech (USA), University of Hawaii (USA), Auburn University (USA), Universidad de Alicante (Spain), Universitat de Barcelona (Spain), European Southern Observatory (Germany), Villanova University (USA), Lowell Observatory (USA), University of Maryland (USA), Las Cumbres Observatory (USA), University of Belgrade (Serbia), Politecnico di Milano (Italy), University of Michigan (USA), University of Western Ontario (Canada), Georgia Institute of Technology (USA), Universidad Diego Portales, Santiago (Chile) and Boston University (USA).
Georgia Southern University’s Allen E. Paulson College of Engineering and Computing and College of Education are teaming up to bring the latest innovative research on renewable energy to STEM educators and their classrooms across Georgia. That’s all thanks to a $600,000 grant from the National Science Foundation to establish the Engaging Educators in Renewable Energy (ENERGY) program. The funds will support a three-year-long initiative that will bring Valentin Soloiu, Ph.D.’s energy research into high school and technical college classrooms. Soloiu and engineering graduate students from Georgia Southern will conduct research related to renewable energy, reducing greenhouse gas emissions, and mitigating climate change, covering topics like renewable and alternative energy (solar and wind), climate change, enhanced energy technologies and the development of sensors and controls for energy applications and smart grids. Soloiu, the Allen E. Paulson Distinguished Chair of Renewable Energy, will be joined by mechanical engineering professor Mosfequr Rahman, Ph.D. and Elise Cain, Ph.D., director of the Educational Leadership Program in the College of Education, in developing the program. “The core requirement is to conduct state-of-the-art, transformative research in science and engineering,” explained Soloiu. “After that is complete, we bring high school and technical college teachers in to translate this research into classroom-ready modules.” Teachers will be selected from a large pool of statewide applicants to work alongside faculty and graduate students from the College of Engineering and Computing. They’ll also receive funds to incorporate that research into their curriculum. Soloiu will oversee the program as the principal investigator, with Cain serving as the education lead, bringing a multidisciplinary approach to the program. “I think interdisciplinary collaborations are vital in academic work,” noted Cain. “Faculty from the Allen E. Paulson College of Engineering and Computing contribute their technical knowledge and skills related to renewable energy, while I bring my College of Education perspectives on educational contexts and pedagogy. Working together allows us to create a robust program with immediate and lasting impacts.” Educators will visit local companies and interact with leaders in renewable energy, such as Gulfstream Aerospace in Savannah, Georgia, and Rolls-Royce Power Systems in Aiken, South Carolina. These experiences are designed to help teachers share career opportunities with students they might not otherwise encounter. “This program reflects the essence of our institutional mission,” said Cain. “It’s about discovery, teaching, and community engagement—all grounded in excellence and innovation.” Soloiu echoed those sentiments. “Many teachers and students in rural areas don’t even know what we do here at Georgia Southern,” explained Soloiu. “By engaging with educators directly, we’re creating awareness, inspiration, and pipelines to higher education and high-tech careers. This is reflective of the University’s dedication to our communities as we move towards R1 status.” Looking to know more about this important research happening at Georgia Southern - Valentin Soloiu is available to speak with media. Simply click on his icon now to arrange an interview today.
MSU team develops scalable climate solutions for agricultural carbon markets
Why this matters: Builds trust in carbon markets. This science-based baseline system dramatically improves accuracy, helping ensure carbon credits are credible and truly reflect climate benefits. Enables real climate impact by accounting for both soil carbon and nitrous oxide emissions, the approach delivers a full, net climate assessment. Scales across millions of acres. Tested on 46 million hectares in 12 Midwest states, this approach is ready for large-scale adoption, helping farmers transition to regenerative practices with confidence and clarity. New research from Michigan State University, led by agricultural systems scientist Bruno Basso, addresses a major problem in agricultural carbon markets: how to set an accurate starting point, or “baseline,” for measuring climate benefits. Most current systems use fixed baselines that don’t account for the soil carbon changes and emissions that would occur if business-as-usual practices were maintained on fields. Such inaccuracies can distort carbon credit calculations and undermine market trust. “The choice of baseline can dramatically influence carbon credit generation; if the model is inaccurate, too many or too few credits may be issued, calling market legitimacy into question,” said Basso, a John A. Hannah Distinguished Professor in the Department of Earth and Environmental Sciences, the Department of Plant, Soil and Microbial Sciences and the W.K. Kellogg Biological Station at MSU. “Our dynamic baseline approach provides flexible scenarios that capture the comparative climate impacts of soil organic carbon, or SOC, sequestration and nitrous oxide emissions from business-as-usual practices and the new regenerative system.” The research, published in the journal Scientific Reports, covers 46 million hectares of cropland across the U.S. Midwest, provides carbon market stakeholders with a scalable, scientifically robust crediting framework. It offers both the investment-grade credibility and operational simplicity needed to expand regenerative agriculture. Regenerative agriculture and carbon markets Regenerative agriculture includes practices like cover cropping, reduced or no tillage, diversified rotations, adaptive grazing and agroforestry. These methods restore soil health, enhance biodiversity, increase system resilience and help mitigate climate change by building SOC and reducing greenhouse gas emissions. Carbon markets offer a promising financial mechanism to accelerate regenerative transitions. By compensating farmers for verified climate benefits, they can act as either offset markets (for external buyers) or inset markets (within agricultural supply chains). However, the integrity of these markets hinges on reliable, science-based measurement, reporting and verification systems that integrate modeling, field data and remote sensing. A breakthrough multi-model ensemble approach To overcome limitations in traditional modeling, the MSU scientists and colleagues from different institutions in the U.S. and Europe deployed a multi-model ensemble, or MME, framework, using eight validated crop and biogeochemical models across 40,000 locations in 934 counties spanning 12 Midwestern states. The MME avoids model selection bias, lowering uncertainty in soil carbon predictions from 99% (with single models) to just 36% (with the MME). “This is a game changer for carbon markets,” said Basso. “It delivers a level of accuracy and scalability — from individual fields to entire regions — that current systems lack.” The MME platform also enables the creation of precalculated, practice-based dynamic baselines, reducing the burden of data collection and easing participation for producers. Improved mitigation assessments Unlike many approaches that consider only SOC, the MSU lead team’s study evaluates both SOC sequestration and nitrous oxide emissions to determine net climate impact. “This comprehensive assessment ensures that carbon credits represent true climate mitigation,” said Tommaso Tadiello, postdoctoral fellow in MSU’s Department of Earth and Environmental Sciences and co-author of the study. “A practice that increases soil carbon may improve soil health,” added Basso, “but it may not deliver actual climate benefits if it simultaneously increases nitrous oxide emissions. Our method provides a full accounting of the net climate effect.” The research team found that the combination of no-till and cover cropping delivered an average net mitigation of 1.2 metric tons of carbon dioxide-equivalent per hectare annually, potentially abating 16.4 teragrams of carbon dioxide-equivalent across the study area. This research was supported by the Michigan Department of Agriculture and Rural Development, U.S. Department of Energy’s Great Lakes Bioenergy Research Center, National Science Foundation Long-Term Ecological Research, Builders Initiative, The Soil Inventory Project, Generation IM Foundation, Walton Family Foundation, Morgan Stanley Sustainable Solutions Collaborative and MSU AgBioResearch.
Video Insights: What Investors Need to Know About Shifting Tariffs
Unprecedented uncertainty brought on by quickly evolving tariff policies is creating challenges and additional considerations for investors and other capital providers. In this video, J.S. Held experts Brian Gleason, John Peiserich, James E. Malackowski, and Tom Burns – experts in turnaround, supply chain, intellectual property, and political risk – pose twelve questions to private equity sponsors and their portfolio companies to explore amid the continued tariff uncertainty. Restructuring and operations expert Brian Gleason has managed or participated in more than 300 turnaround engagements over the past 29 years and applies the principles utilized in J.S. Held's work advising companies in crisis. In the video, Brian addresses three essential questions that investors should consider with their portfolio companies during this period of unprecedented tariff-policy-induced uncertainty: 1) How have tariffs impacted business forecasting and investor confidence? 2) What are the key actions portfolio company management teams should take during tariff-induced uncertainty? 3) What leadership strategies are recommended for navigating the economic stress caused or complicated by tariffs? Business intelligence expert Tom Burns has extensive experience leading intelligence collection assignments for financial institutions, law firms, and blue-chip multinationals around the world. Tom explores the additional pre-acquisition diligence essential amid tariff uncertainty in the video. He addresses three questions, including: 4) How have tariffs changed the due diligence process in acquisitions? 5) What is transshipment, and why is it a concern for investors and their portfolio companies? 6) What steps should investors take to manage tariff-related risks in acquisitions? Capital projects, environmental risk, and compliance expert John Peiserich has over 30 years of experience advising heavy industry and law firms throughout the country with a focus on Oil & Gas, Energy, and Public Utilities. In the video, John reflects upon: 7) Why is it important for investors to assess the owner-operator's understanding of supply chain risks? 8) How have tariffs introduced new challenges for large-scale projects? 9) What is the potential impact of supply chain and tariff-related delays on investment outcomes? James E. Malackowski has a unique perspective on intellectual property litigation risk, strategic management, and monetization, which benefits from his prior work at a leading private equity firm. In the video, he advises investors and their portfolio companies to consider: 10) How do tariffs influence decisions around manufacturing relocation and intellectual property? 11) What IP-related risks should companies consider when relocating manufacturing operations? 12) What steps should investors take to ensure IP is properly managed in response to tariffs? The J.S. Held Tariffs and Trade Series is a collection of intelligence, insights, and action plans that inform strategic business decision-making and foster resilience in an increasingly volatile global market. To view more of our Tariffs and Trade Series expert analysis and commentary, visit: Looking to know more or connect with John Peiserich and James E. Malackowski? Simply click on either expert's icon now to arrange an interview today. If you are looking to connect with Brian Gleason or Tom Burns - contact : Kristi L. Stathis, J.S. Held +1 786 833 4864 Kristi.Stathis@JSHeld.com
Why Paying Cash Can Hurt Your Credit
Earlier this week, Rosa Marchitelli from CBC’s Marketplace recently profiled a Calgary man whose credit score shockingly dropped to zero—not because he was reckless with debt, but because he paid cash for everything. No missed payments. No defaults. Just a lifetime of financial caution that, ironically, made him invisible in the eyes of Canada’s credit system. It’s the kind of story that stops you in your tracks—because it turns everything we’ve been told about “good financial behaviour” on its head. In this post, we’ll break down the surprising logic behind Canadian credit scores, why living debt-free can actually hurt your financial profile, and how to play the credit game without compromising your values. If you’ve ever thought, “I don’t need credit because I’m responsible,” this might just change your mind. Back when I taught the Mortgage Agents Licensing Course, offered by Mortgage Professionals Canada, I always looked forward to my session on credit. Why? Because most people don’t really understand how credit scores work—or how to protect and build a healthy one. So, you’ve always paid cash, avoided debt like the plague, and proudly told your kids you don’t even own a credit card. Congratulations! You’re a responsible citizen… but your credit score is probably dreadful. Wait—what? Yes, the wonderful world of Canadian credit scoring is one of life’s mysteries. It rewards behaviour that may seem risky to the debt-averse but is actually just good financial practice in disguise. So, let’s lift the curtain and decode the quirky logic behind your credit score. Credit Scores 101: It’s Not About Your Morals. It’s About Your Habits In Canada, credit scores range from 300 to 900—the higher, the better. Your score reflects your ability to manage borrowed money based on your past use of credit products such as credit cards, lines of credit, and loans. Here’s the twist: not using credit at all doesn’t make you look smart; it makes you look suspicious. Credit bureaus assume that if you don’t have credit, it’s because you can’t get it—not because you’re a thrifty minimalist growing kale and paying cash. Meet the Scorekeepers: Equifax vs. TransUnion Canada has two major credit bureaus: • Equifax – Favoured by banks and mortgage lenders. • TransUnion – Commonly used by credit card and auto lenders. Each bureau calculates your score slightly differently, so the numbers may vary, like having two referees at the same game. Expect some disagreement on the calls. Pro tip: check both reports annually (for free) to spot any errors early. The Government of Canada has more information for you here. Credit Score Bands Score Range 800–900 - Excellent Access to the best rates and financial products. 740–799 - Very Good Qualifies for most products with favourable terms. 670–739 - Good Solid score; ~35% of Canadians are here. 580–669 - Fair May qualify but at higher rates. 300–579 - Poor High risk. Harder to get approved. Minimum Scores for Common Credit Products Credit Cards: 600+ Premium cards usually require 700+ Auto Loans: 620+ Higher rates if below 700 Consumer Loans: 640+ Lower scores = shorter terms/higher rates Mortgages: 680+ CMHC-insured loans often require a 680+ Pro Tip: Paying cash may make Grandma proud, but lenders can’t assess you without credit activity. No credit = no score = no loan Decoding Credit Codes: The ABCs and 1- 9s of Credit Credit accounts are coded using a letter for the type of credit and a number for how well you manage it. Letter Codes: R – Revolving (e.g., credit cards) I – Instalment (e.g., auto loans) M – Mortgage O – Open (e.g., lines of credit) Number Ratings: 1 – Paid on time 2–5 – Late by 30 to 120+ days 6 – Not used 7 – Making regular payments via credit counseling 8 – Repossession 9 – Sent to collections or bankruptcy A trade line is a record of your credit account. Each shows the credit type, lender, balance, and payment history. Think of it as a financial resume—each tradeline is like a job entry listing your past and present “performance” with a particular creditor. How Long Does Negative Info Last: Bankruptcy (R9); Equifax (7 Years) TransUnion (6 years) Late Payments: Equifax (6 Years) TransUnion (6 years) Collections: Equifax (6 Years) TransUnion (6 years) Consumer Proposal: Equifax (3 years post-payment) TransUnion (3 years post-payment) Credit Counselling (R7): Equifax (7 years after the final payment) TransUnion (6 years after the final payment) Pro Tip: Keep in mind that after falling off your credit report, bankruptcies may still appear in public records. Here's How Your Score Is Calculated Factor Weight and Why It Matters Payment History 35% Late payments are like bad breath—unforgettable. Credit Utilization 30% Use less than 30% of your limit. Length of Credit 15% Longer credit history is more trustworthy. Credit Mix 10% Variety of products = balanced borrower. New Credit Inquiries 10% Too many apps = desperation sniffed by lenders. Source: TransUnion Canada - Credit Score Factors Utilization: More Credit, Used Sparingly = Better Score Yes, it’s weird—but true: someone with five credit cards and a $50,000 limit who uses only $2,000 will likely have a better score than someone with a single $2,000 credit card which is nearly maxed out. Why? Utilization is calculated as a percentage. The more room you leave untouched, the more responsible you appear. Ghosts & Abstainers: No Credit is a Red Flag So, back to the Marketplace story we mentioned earlier. As we consider all the factors involved in credit scoring, is it surprising that this man in Calgary, who paid cash for everything, had his score drop to zero after a long period of inactivity? Not really. Credit bureaus don’t reward abstinence—they penalize it. If you haven’t borrowed in a while, you may be “credit invisible.” It’s like trying to get hired without a resume. No record? No offers. Building (or Rebuilding) Credit What if you need to fix a low score due to missed payments, bankruptcy, or simply a lack of credit history? Getting your credit score up is entirely possible—with patience, consistency, and the right strategy. Here’s a practical framework I use. 1. Get Credit – A secured card works just fine. 2. Use It – Buy groceries, gas, Netflix—whatever you usually pay for. 3. Pay on Time – Even the minimum. Set a reminder …or three. 4. Stay below 30% – Don’t max it out. Do this, and your score should rise like a perfectly baked soufflé. When Credit Counselling is the Better Option Struggling with debt? Credit counseling might be your best path forward. These services consolidate all unsecured debts into one monthly payment and negotiate with creditors to reduce or eliminate interest. It’s a couple-of-year commitment that avoids bankruptcy, and you pay something back. However, your credit will reflect an R7 status for 3 years after your final payment or 6 years after you sign the contract, whichever comes first. Pro Tip: Credit counseling is the more noble route, but remember that it still significantly affects your score. (Source: Credit Counselling Canada) What If There’s an Error—or You’ve Been Hacked? If you spot a mistake on your report—or worse, see signs of identity theft—don’t panic. Here’s what to do: 1. Request a copy of your report from Equifax and TransUnion. 2. Highlight the error and contact the bureau to initiate a dispute. 3. Provide supporting documents. 4. Follow up regularly—bureaus must investigate within 30 days. If you’re a victim of identity theft: • Contact your bank and credit card issuers immediately. • File a police report. • Consider placing a fraud alert or credit freeze on your credit file. Here are important links with more details on how to work with both <Equifax> and <TransUnion> The final statement (get it?) Your credit score doesn’t care if you’re a good person. It only cares if you’re a predictable borrower. So don’t take it personally—play the game smartly. Because in the wild world of credit, it’s not about morals. It’s about whether you paid your $9.99 Netflix bill on time. Now go forward and charge responsibly. Don’t Retire … Re-Wire! Sue
The roots of scuba diving lie in exploration. But in an age when advanced instruments can drive research, too, why not stay dry on land? Researchers have used scuba diving as a tool for decades, but as technology evolves, remotely operated vehicles (ROVs) can aid, and sometimes replace, divers in the research process. Still, argues Stephen Wood, no existing tools have the full capability of a human. The professor of ocean engineering says the ability to grab items or quickly turn one’s head is difficult to replicate in an ROV. He also argues that although robots can collect and send data, the ability to assess and interpret an environment through a human lens is essential. “The human cannot leave” the research, Wood says. The American Academy of Underwater Sciences (AAUS) defines scientific diving as “diving performed solely as a necessary part of a scientific, research, or educational activity by employees whose sole purpose for diving is to perform scientific research tasks.” With more than 140 organizational members, AAUS supports diving as a research tool and protects scientific divers’ health and safety. Researchers and students must obtain an AAUS certification, which Florida Tech offers, before undertaking a scientific dive. At Florida Tech, any diver who plans to use compressed air or air blends for activity involving teaching or research must comply with AAUS. Robert van Woesik, professor of marine sciences, studies the dynamics of coral reefs worldwide. He and his students scuba dive to examine and photograph coral assemblages, then return with information they can use to predict the impact of local and global disturbances, recovery from disturbances and future growth. The ability to personally identify different species underwater is crucial to understanding coral reef dynamics. He says that without scuba, the necessary training to develop that skill falls away. “I think it’s still worthwhile knowing the species composition of a reef underwater instead of just saying, ‘Okay, we don’t need scuba divers anymore. We just need photographs and ROVs,’” van Woesik says. He learns the most when he can descend to a reef and see the seascape himself. “I think there’s something to be said to just go in the water and ask some questions,” van Woesik says. “That’s the valuable part of being able to scuba dive, getting amongst it to experience the reef, in tandem with analyzing photographs from around the world on the computer.” Assistant professor of marine sciences Austin Fox says in his research in the Indian River Lagoon, diving is essential for operating—and sometimes finding—instruments. “We spend a lot of time trying to figure out ways to do this stuff without diving…but there’s just no replacement for it.” Austin fox, Assistant professor of marine sciences Scientific diving has taken Florida Tech researchers across the globe, from the murky floor of the Indian River Lagoon to the depths of Antarctica’s McMurdo Sound. Rich Aronson, department head and professor of ocean engineering and marine sciences, studies coral reefs in the tropics and subtidal communities in Antarctica. In 1997, he had the opportunity to visit the McMurdo Station to study invertebrate ecology—specifically, who eats what and whether they leave traces of their predatory activity on the shells of their prey. There, he completed 27 dives of up to 130 feet deep. Some were done through ice-cracks in remote areas, he recalls, whereas others were from holes drilled through 10 feet of sea-ice. He noted that the time to prepare for these dives was extensive—two 30-minute dives took eight hours—and they weren’t without risk. “That was the first and only time I’ve dived under the ice. It’s dangerous because there’s a ceiling above you,” Aronson says. “You jump in the hole and try not to screw it up because if you screw it up, you’re dead.” Though risky, Aronson says scuba diving was crucial to the research. He argues that neither ROVs nor oceanographic sensors could have collected or sampled organisms at fine scales, run transects and made behavioral observations like a human could. Additionally, he says his observations at depth, such as the “sting of subzero water” on his face and “the slowness of reaction of the animals living down there,” are what later inspired a project of his combining deep-sea oceanography and paleontology to project the future of Antarctic seafloor communities in a rapidly warming world. “Science is a lot more subjective than you might think, and feeling the environment helps you understand it.” Richard Aronson, department head and professor of marine sciences The risky nature of scuba diving is why programs like AAUS exist: to standardize safe and responsible diving practices for conducting scientific research. Divers are at risk for a number of pressure-related injuries, such as decompression sickness: a condition in which residual nitrogen can create bubbles in the blood and body tissue upon ascent if the diver rises to the surface too fast. To reduce their risk, divers must plan and track how deep they are going, the time at which they are that depth (and subsequent depths) and how long they need to wait before changing depth. Technology has also evolved since the beginning of scuba to support divers’ safety further. Digital dive computers, developed in the 1980s, help divers estimate how long they can stay at their current depth while underwater (among other things). Additionally, Enriched Air Nitrox (Nitrox) is a gas mixture that contains a higher percentage of oxygen than standard air. Divers who use Nitrox can extend their time at depth and reduce their risk of decompression sickness because of its reduced nitrogen pressure. Van Woesik predicts that dive technology will keep evolving. He imagines there could soon be a system that allows divers to upload data at depth, and a system that aids in species identification without having to decipher an image at the surface. He also believes that innovators will keep working to reduce hazards and prioritize safety, because despite the risks, divers will always get in the water. “Hopefully that technology will get better so we can go deeper, safer, and so we can stay down a bit longer to explore and further understand the natural wonders of the oceans,” van Woesik says. If you're interested in connecting with Stephen Wood, Austin Fox, Richard Aronson or Robert van Woesik - simply contact Adam Lowenstein, Director of Media Communications at Florida Institute of Technology at adam@fit.edu to arrange an interview today.
What's Your Retirement Plan B?
Chances are, you have seen the ups and downs in the financial markets, which can really cause seniors a lot of anxiety when looking at those portfolio statements. Add to that the ripple effects of the Canada-U.S. trade war, and it’s more essential than ever to have a Plan B. The Trade War Is Personal The Canada-U.S. trade tensions may appear to be a political issue, but their repercussions are directly impacting kitchen tables across the country. Inflation is increasing the cost of everyday essentials, while investments—on which many retirees depend for income—are suffering. For those who cannot easily re-enter the workforce, this situation is more than just inconvenient. It’s stressful. Withdrawing investments during a market dip can permanently reduce your savings. Meanwhile, rising prices on everything from apples to arthritis medication stretch fixed incomes thinner than ever. This isn’t just about budgeting anymore —it's about building a wise financial safety net. Plan B Matters More in Retirement You’ve worked hard to reach this point. Retirement should be about freedom, not fear. However, having a backup plan is essential since there are limited ways to generate new income. Think of Plan B as your financial airbag — something you hope you never need, but you're grateful it's there when life encounters a bump. And let’s be honest: even the most well-padded retirement can use a little backup when the economy’s doing somersaults. The Simple Economics of Cashflow Managing your finances boils down to a straightforward equation: money in versus money out. Think of it as balancing a seesaw—on one side, you have your income (cash in), and on the other, your expenses (cash out). For seniors, especially those on a fixed income, keeping this balance is crucial. Boosting Your Income Even in retirement, there are ways to add a little extra to your “money in” side. This could be through part-time work, turning a hobby into a small business, or renting out unused space in your home. Every additional dollar earned can provide more breathing room in your budget. Another option for many Canadians, is right under their feet—their homes. Home equity can be a powerful tool, giving them access to funds without selling or downsizing. Here are some practical options you may want to consider: Home Equity Line of Credit (HELOC): If you qualify, a HELOC offers flexible access to funds and charges interest only on the amount you use. It’s perfect for short-term needs or emergency access. Remember, you’ll need to make monthly payments and provide proof of income to qualify. Manulife One is a creative and customizable solution that combines your mortgage, income, and savings into a single account. It allows you to borrow against your home with greater flexibility. Payments are required but can be made within the available limit. Qualifying is similar to a HELOC. Reverse Mortgage: For homeowners aged 55 and older, a reverse mortgage allows you to access your home equity without the need for monthly payments. The loan is repaid when you sell or move, providing you with freedom and cash flow while remaining in your home. These tools can help ensure you're not forced to withdraw from investments during market downturns, letting your money recover while you stay comfortable. Trimming Your Expenses On the flip side, reducing your “money out” can be equally, if not more, effective. Perhaps you have subscriptions you no longer use for streaming services or mobile phone plans. Or you find you are purchasing too many items at the store because you aren’t preparing a list. Or you are dining out multiple times a week. Remember, every dollar you don’t spend is a dollar saved. Let’s unpack this a bit more, looking at this from a tax perspective Understanding the After-Tax Advantage of Cost Reduction For seniors supplementing their income with part-time work, it’s crucial to recognize that reducing expenses can be more impactful than earning additional income, primarily due to the effects of taxation. For example, let’s consider part-time income at a marginal tax rate of 30%. -------------------------------------------------------------------------------------------------- • To have an extra $100 in your pocket after taxes, you’d need to earn approximately $142.86 before taxes. This is because 30% of $142.86 is $42.86, leaving you with $100 after tax. • Conversely, if you reduce your expenses by $100, you effectively save the full amount. There’s no tax on money you don’t spend. Why This Matters: Every dollar saved is equivalent to more than a dollar earned when considering taxes. This means that focusing on cost-saving measures can be a more efficient strategy for improving your financial situation than seeking additional taxable income. 3 Major Strategies to Help You Cut Costs Budgeting: Prioritize identifying and eliminating unnecessary expenses. Regularly review subscriptions, dining habits, and utility plans to find areas where you can cut back. Smart Shopping: Utilize discounts, loyalty programs, and bulk purchasing options to reduce spending on essentials. Tax Planning: Be aware of how additional income might affect your tax bracket and eligibility for income-tested benefits. Sometimes, earning more can inadvertently reduce certain government benefits. Saving Smart – Some Tips to Get Started Your Plan B doesn’t have to focus solely on earning more income or borrowing. Sometimes, the best backup plan begins with cutting the extras. Think of it as being retro cool — just like you were before it became trendy. Tip #1: Rethink Dining Out - A Once-A-Week Treat, Not a Routine I love to dine out. It’s great to leave the cooking to someone else, especially after a busy day. But this is also one of the fastest ways to drain your budget. In Toronto, the average cost of a casual dinner for two with wine is around $90–$120. Opt for a more upscale spot? You’re likely looking at $150+ after tax and tip. Savings Tips • Cutting out one dinner per week could save approximately $400–$500/month or $5,000–$6,000/year. • Think about hosting a monthly dinner with friends at home where everyone brings a dish. You’ll still enjoy social time—but for a fraction of the cost. Or maybe try organizing a game night. Perhaps it’s euchre or cribbage, or maybe charades they all have something in common (they don’t require a monthly fee). Organize a potluck to bring people together. Twister might be off the table (unless your chiropractor is on standby), but laughter and connection are always in season. • Also think about how you can share resources. From ride-shares to splitting bulk grocery purchases with a neighbor, the old-school approach of sharing is making a comeback. It’s like carpooling, but with avocados and streaming passwords. Tip #2 Review Your Subscriptions - What are you Really Using? Have you already binge-watched all the episodes of your favourite shows, but you are still paying for streaming services you haven’t used in months? Then it’s time to cancel some subscriptions. According to the Convergence Consulting Group The average Canadian household now spends $70–$90/month on streaming and digital services (Netflix, Disney+, Prime Video, Spotify, etc.). Many people are paying too much for mobile. According to the CRTC, the average Canadian pays $64/month for mobile service. Seniors who negotiate can often reduce this to $35–$45/month—a 30–40% savings. Savings Tips: • Audit Your Subscriptions: Write down every monthly and yearly subscription you have. Even cutting or optimizing 2 or 3 could save $30–$50/month. • Cancel subscriptions you don’t use often. You can always resubscribe later. Instead of paying for four platforms and using a few, consider rotating through them one at a time. You’ll be surprised at how quickly you can catch up on your favorites. Many streaming platforms also offer free trials or cheaper, ad-supported versions. • Call Your Mobile Phone & Internet Carrier Once a Year. Most people don’t realize how much loyalty can cost them. New customers often get much better deals than long-standing ones. When you call, here are some questions to ask: “Am I on the best plan for my usage?” “Are there any promotions I qualify for?” “Can I get a loyalty discount?” “Do you offer special discounts for seniors?” Keep in mind there are also senior-specific mobile plans from carriers like Zoomer Wireless, Public Mobile, or SpeakOut. • Don’t be shy about taking your business elsewhere. Carriers don’t want to lose subscribers and have special offers designed to make you want to stay. You’d be surprised how quickly they "find" a discount. Savings Tip #3: Don’t Throw Out Those Flyers and Coupons With inflation pushing up grocery prices, shopping smart matters more than ever. According to Statistics Canada, the average Canadian household now spends $1,065/month on groceries. So, it may be time to pay attention to those grocery store flyers you used to throw out. While Canadian data on potential savings is limited, US studies show that flyers and couponing can reduce costs by 10–25% for groceries and other household items if used consistently. Savings Tips: • Use apps like Flipp or visit sites like Smart Canuks to find online flyers you may have missed. • Sign up for loyalty cards to access extra discounts. One of the most popular savings programs, PC Optimum, offers frequent discounts and helps you collect points at Shoppers Drug Mart and Loblaws. Also, remember to swipe loyalty cards at the pump; many gas retailers offer discounts that can add up. • Consider shopping at stores like Walmart, which have pricing-matching policies for identical items you find advertised elsewhere. Saving Tip #4: Cut the “Daily Habits” That Add Up Remember, it’s not just the big expenses—it’s the daily ones that sneak up on you. Let’s look at a few “seemingly small” indulgences as examples: • 3 Starbucks Grande Lattes ($6.45 + tax) x 3 days/week = $1,137/year • Take-Out Lunch (for $12 + Tax) x 3 days/week = $2,115/year That’s over $3,000/year in “small” daily purchases! Savings Tips: • Prepare Meals in Advance: Cooking larger portions and planning for leftovers can minimize the temptation of ordering takeout. Planning meals and shopping with a list can prevent impulse purchases and reduce food waste. • Embrace the Home Café Trend: Investing in a quality coffee maker and brewing your own coffee can add joy to your day but also reduce your costs. • Set a Food Budget: Establishing a clear budget for dining out and groceries helps you track expenses and make more mindful spending decisions. Try allocating specific amounts to avoid overspending. Saving Tip #5: Leverage Senior Discounts if you are 60+ From transit to museums to groceries and drugstores, there are dozens of businesses that offer 10–20% off for seniors—but they don’t always advertise it. Many stores also have a set day of the week for seniors' discounts. Consider this: A $50 weekly purchase with 20% off saves $10—over $500/year. Savings Tips: • Shoppers Drug Mart has a 20% Seniors Day on Thursdays (for those 65+) • Rexall offers a 20% discount on Tuesdays • Many major retailers (e.g., Canadian Tire, Sobeys) offer senior discounts that vary by location—ask at checkout. Cineplex has special pricing for seniors plus seasonal promos like $5 Tuesdays if you want to take the grandkids with you. Saving Tip #6: Mind Your Utilities and Insurance Reviewing these bills once a year can result in hundreds of dollars saved. Consider switching to time-of-use electricity plans, which are offered in most areas. Check to see when cheaper rates are offered during off-peak hours, and look at using appliances such as your clothes dryer on off-peak hours. You can also lower your insurance premiums by looking at options such as raising your deductible (if you’re comfortable with the risk). Also, look at rates offered by providers for “pay as you drive” insurance, especially if you aren’t using your car a lot. Also, if you are not bundling your home and auto insurance, you may be missing out on some savings. Saving Tip #7: Buy & Sell Online Many items we need can be found for a fraction of the cost used on platforms such as Facebook Marketplace and Kijiji. And remember, buying a used item also saves on tax. Many retirees have extra furniture, tools, collectibles, or tech they don’t need. It's now easier than ever to declutter and turn these unused items into extra cash. It’s All About Small Changes and Big Rewards Recessions are hard on everyone, but especially on those living on fixed incomes. The good news is that there are plenty of smart, manageable ways to reduce expenses without giving up all the good things in life. By becoming a more conscious consumer and checking in on your spending habits once or twice a year, you can save thousands of dollars annually—money that can be redirected toward travel, gifts for grandkids, or, if nothing else, it just may calm your nerves. Another Tip: Don’t Wait — Timing Matters If this trade war continues, housing values may dip, which means the equity you can access could shrink. Getting your Plan B in place now ensures you lock in flexibility and peace of mind before things tighten up. Remember, it’s easier to get approved for a HELOC or reverse mortgage when you don’t urgently need it. It's better to set it up and keep it on standby than to wait until it’s too late. Talk It Out Stress develops in silence. Speak to family and friends about your concerns. They may not have all the answers, but they’ll provide emotional support — and possibly assist with paperwork or technical hurdles. If you have senior loved ones, check in and ask how they’re feeling about rising costs and uncertainty. These conversations go a long way and might even lead to better solutions. This trade war isn’t solely about economics. It involves peace of mind, dignity, and stability in retirement. While it may not be the type of Plan B that preoccupies the younger generation, it is equally important — perhaps even more so. So, take a breath. Make a plan. Get creative with your budget, and look at ways to save. Tap into your home equity if necessary, and don’t hesitate to ask for help. With the right Plan B, you can face the future with confidence — and perhaps even enjoy a little fun along the way. Here's a handy checklist to help you get started. Quick Wins Checklist ❏ Cancel one unused subscription ❏ Call your mobile carrier for a better deal ❏ Bring lunch instead of dining out 1x/week ❏ Use a coupon or flyer on your next grocery trip ❏ Look for a senior discount before you pay ❏ Brew your coffee at home 3 days this week ❏ Research potential discounts on your car insurance (bundling or pay-as-you-drive options) ❏ Use your clothes dryer or other appliances during off-peak hours to save on electricity Don’t Retire … Re-Wire! Sue
3D-printed lung model helps researchers study aerosol deposition in the lungs
Treating respiratory diseases is challenging. Inhalable medicines depend on delivering particles to the right lung areas, which is complicated by factors like the drug, delivery method and patient variability, or even exposure to smoke or asbestos particles. University of Delaware researchers have developed an adaptable 3D lung model to address this issue by replicating realistic breathing maneuvers and offering personalized evaluation of aerosol therapeutics. “If it's something environmental and toxic that we're worried about, knowing how far and how deep in the lung it goes is important,” said Catherine Fromen, University of Delaware Centennial Associate Professor for Excellence in Research and Education in the Department of Chemical and Biomolecular Engineering. “If it's designing a better pharmaceutical drug for asthma or a respiratory disease, knowing exactly where the inhaled aerosol lands and how deep the medicine can penetrate will predict how well that works.”that can replicate realistic breathing maneuvers and offer personalized evaluation of aerosol therapeutics under various breathing conditions. Fromen and two UD alumni have submitted a patent application on the 3D lung model invention through UD’s Office of Economic Innovation and Partnerships (OEIP), the unit responsible for managing intellectual property at UD. In a paper published in the journal Device, Fromen and her team demonstrate how their new 3D lung model can advance understanding of how inhalable medications behave in the upper airways and deeper areas of the lung. This can provide a broader picture on how to predict the effectiveness of inhalable medications in models and computer simulations for different people or age groups. The researchers detail in the paper how they built the 3D structure and what they’ve learned so far. Valuable research tool The purpose of the lung is gas exchange. In practice, the lung is often approximated as the size of a tennis court that is exchanging oxygen and carbon dioxide with the bloodstream in our bodies. This is a huge surface area, and that function is critical — if your lungs go down, you're in trouble. Fromen described this branching lung architecture like a tree that starts with a trunk and branches out into smaller and smaller limbs, ranging in size from a few centimeters in the trachea to about 100 microns (roughly the combined width of two hairs on your head) in the lung’s farthest regions. These branches create a complex network that filters aerosols as they travel through the lung. Just as tree branches end in leaves, the lung’s branches culminate in delicate, leaf-like structures called alveoli, where gases are exchanged. “Those alveoli in the deeper airways make the surface area that provides this necessary gas exchange, so you don't want environmental things getting in there where they can damage these sensitive, finer structures,” said Fromen, who has a joint appointment in biomedical engineering. Mimicking the complex structure and function of the lung in a lab setting is inherently challenging. The UD-developed 3D lung model is unique in several ways. First, the model breathes in the same cyclic motion as an actual lung. That’s key, Fromen said. The model also contains lattice structures to represent the entire volume and surface area of a lung. These lattices, made possible through 3D printing, are a critical innovation, enabling precise design to mimic the lung's filtering processes without needing to recreate its full biological complexity. “There's nothing currently out there that has both of these features,” she explained. “This means that we can look at the entire dosage of an inhaled medicine. We can look at exposure over time, and we can capture what happens when you inhale the medication and where the medicine deposits, as well as what gets exhaled as you breathe.” The testing process Testing how far an aerosol or environmental particle travels inside the 3D lung model is a multi-step process. The exposure of the model to the aerosol only takes about five minutes, but the analysis is time-consuming. The researchers add fluorescent molecules to the solution being tested to track where the particles deposit inside the model’s 150 different parts. “We wash each part and rinse away everything that deposits. The fluorescence is just a molecule in the solution. When it deposits, we know the concentration of that, so, when we rinse it out, we can measure how much fluorescence was recovered,” Fromen said. This data allows them to create a heat map of where the aerosols deposit throughout the lung model’s airways, which then can be validated against benchmarked clinical data for where such aerosols would be expected to go in a human under similar conditions. The team’s current model matches a healthy person under sitting/breathing conditions for a single aerosol size, but Fromen’s team is working to ensure the model is versatile across a much broader range of conditions. “An asthma attack, exercise, cystic fibrosis, chronic obstructive pulmonary disorder (COPD) — all those things are going to really affect where aerosols deposit. We want to make sure our model can capture those differences,” Fromen said. The ability to examine disease features like airway narrowing or mucus buildup could lead to more personalized care, such as tailored medication doses or redesigned inhalers. Currently, inhaled medicines follow a one-size-fits-all approach, but the UD-developed model offers a tool to address these issues and understand why many inhaled medicines fail clinical trials.
Saving the world, one yard at a time
University of Delaware professor Doug Tallamy has a simple mission: Encourage people to rid their property of invasive plants and replace them with native ones. One of the ways he's tackling it is through a concept called “Homegrown National Park,” a grassroots initiative he co-founded to offer a simple solution for the biodiversity crisis — the decline of a variety of animals, plants and numerous species. Tallamy, the TA Baker Professor of Agriculture and Natural Resources at the University of Delaware, is trying to encourage everyone to do their part to protect the planet. If invasive plants (which don’t belong in an area and can ultimately harm the ecosystem by taking away essential resources from other plants) grow out of control, then an area loses its biodiversity, the ability for multiple plant and animal species to function at once and create a rich ecosystem. Invasive species are prolific. For example, many invasive plants produce berries, which some birds eat. The birds then spread those seeds around. So, once invasive plants are in an area, they’re hard to get rid of. The idea is to replace them with native plants, which have historically belonged to a region and provide critical habitat for insects, birds and other creatures. It's an uphill climb, but Tallamy persists and is trying to save the world, one yard at a time. “Everybody has a responsibility of doing things that sustain their little piece of the earth, and there are a whole bunch of things one individual can do to help in that regard,” Tallamy said. What’s not so simple, however, is getting the Earth’s 8 billion people (or, at least, anyone with property) to do this. “We are trying to change the culture so that [replacing invasive plants with native ones] becomes the norm, not the exception,” Tallamy said. “We’re not getting rid of lawns. But we don’t need 44 million acres of them. There are now so many people on the planet that natural systems are not functioning the way they need to sustain us.” A snowball effect Much of our current plant culture revolves around colorful, aesthetically pleasing ornamental plants that don’t support the local food web. When they grow out of control, a local yard or larger region loses out on biodiversity. The natural world is all connected. For example, Tallamy said, if we lose pollinators like our native bees that transport pollen between plants, then we also lose most of our plants that produce flowers and fruits. It’s a snowball effect. “If that happens, the energy flow through our terrestrial ecosystems is almost totally disrupted, which means the food webs that support our vertebrate animals, our amphibians, our reptiles, our birds and our mammals would collapse and all those animals would disappear,” Tallamy said. “Without insect decomposers, the creatures that break down dead material, mostly plants, would rot and only bacteria and fungi would endure.” “Homegrown National Park” has generated a lot of buzz for Tallamy, who received recognition for it in October by the Massachusetts Horticultural Society. The MHS awarded Tallamy with its highest honor, the George Robert White Medal of Honor, for eminent service in the field of horticulture. Conservation in action Tallamy’s quest to “change the culture” on planting can be witnessed in the fall at UD. On a warm October afternoon, he and a group of students from the Introduction to Insect and Wildlife Field Studies (ENWC 165) course trudged out to UD Wetlands to curtail some pesky invasive plants native to Asia. Equipped with clippers, loppers and handsaws, they walked behind Worrilow Hall, part of the College of Agriculture and Natural Resources’ 350-acre campus, which includes the UD Wetlands, an area that was formerly a dairy cow pasture but transformed into wetlands in 2008 because pollution from the farm was reaching the local watershed. The wetlands were created because wetlands, by design, absorb nitrogen from runoff before it goes into waterways. They then release it as a gas into the atmosphere. But the UD Wetlands repeatedly deal with pesky invasive plants such as Porcelain-berry and Chinese elm. Over the years, UD students have stymied the species from overtaking the area. “See this? This is a good guy,” said Tallamy to the students as he held up a fallen branch. “You just want to get the Porcelain-berry off of it. They’ll grow back very well. But we want to nip [the Porcelain-berry] in the bud.” Taylor Kelly, a senior wildlife ecology and conservation major who took part in the invasive species removal, said Tallamy has helped her better understand the interconnectedness of various ecosystems. “Native plants provide so much value to our local pollinators, which add value to our local birds because they feed on pollinators, seeds, fruit and trees,” Kelly said. When native plants are in their natural environment, she added, it is a beautiful thing to see. Gardening with intention Tallamy, who began his teaching career at the University of Delaware in 1982, has published numerous research papers about entomology and written three books about native plants, insects and ecosystems, with a fourth book soon to come out. Lately, much of his career has revolved around public outreach. He often lectures across the country about native plants and their ecosystem value and is regularly quoted in outlets like The New York Times, The Washington Post and Natural History Magazine. “Dr. Tallamy is a rare scientist that is able to explain his work to everyone,” said Jake Bowman, UD professor of wildlife ecology and chair of the Department of Entomology and Wildlife Ecology. “His passion for the importance of native plants has driven a major shift in thinking.” Years ago, when Tallamy first set out to spread his messages about native plants, he anticipated a lot of pushback from horticulture enthusiasts who he thought might be resentful about being told how to choose their plants. Instead, Tallamy found that many actually embraced his ideas, including Delaware’s own Master Gardeners, a group of about 300 volunteer educators trained by UD Cooperative Extension. Among his supporters are Delaware Master Gardeners Karen Kollias, Brent Marsh and Judy Pfister, who each praised Tallamy for the impact he has had on how they garden. Kollias now “gardens with intention”— not for herself or her neighbors, but for the environment. “I was a gardener before,” she said. “Now I consider myself an ecological gardener.” After Marsh received a copy of Tallamy’s 2007 book, Bringing Nature Home, which talks about the link between native plants and native wildlife, Marsh became a Master Gardener and began planting native species in his Georgetown lawn. Today, native plants such as woodland sunflowers and oak trees adorn Marsh’s yard, and he is grateful for the value of native plants that he learned through Tallamy’s book. “Someday, maybe 20 years from now when I’m 100 years old, somebody's going to buy my house and they’re going to say, ‘Who planted all these oak trees?!’” Marsh chuckled. “Doug Tallamy changed my life.” As Tallamy has sought to simplify scientific knowledge with the general public, Pfister has utilized Tallamy’s approach to do the same. “He has a way of just making the whole thing a big circle, tying the need for a plant back to the need for a bird back to the need for a tree,” she said. Tallamy, who has been delighted by the fervor ignited by his native plants teachings, said the future of the Earth and its diverse ecosystems will in large part depend on how people treat their yards. “In the past, we asked our landscapes to do one thing, and that was, be pretty,” Tallamy said. “Now we have to ask them to do two things: be pretty and ecologically functional. That's the horticultural challenge of today.” But it’s one Tallamy believes can be achieved. Sometimes, he wishes he could speak to his 10-year-old self and tell the young boy to dig another pond for the toads to colonize. Restore. Conserve. Focus on keeping nature’s ecosystems intact, he would say. “We have to do both,” Tallamy said. “Yes, we have to conserve what’s out there, but we have to get in the mindset that we can really put a lot of it back.” Tallamy and Homegrown National Park co-founder Michelle Alfandari have created a database for people to type in their zip code and discover which native plants are best for their area.
New study shows alarming rate of potential species extinction due to climate change
A recent study authored by the University of Connecticut's Mark Urban found that close to one third of species across the globe would be at risk of extinction by the end of the century if greenhouse gases continue to increase at current levels. His study, published in the journal Science, looked at more than three decades of biodiversity and climate change research. The findings are alarming. The study found that if global temperatures rise to 2.7 degrees Fahrenheit (1.5 degrees Celsius) above the pre-industrial average temperature, exceeding the target of the Paris Agreement, extinctions would rapidly accelerate — especially for amphibians; species in mountain, island and freshwater ecosystems; and species in South America, Australia and New Zealand. Earth has already warmed about 1.8 F (1 C) since the Industrial Revolution. Climate change causes shifts in temperatures and precipitation patterns, altering habitats and species interactions. For instance, warmer temperatures have caused monarch butterfly migration to mismatch with the blooming of plants they pollinate. Many animal and plant species are shifting their ranges to higher latitudes or elevations to follow more favorable temperatures. While some species might adapt or migrate in response to changing environmental conditions, some can't survive the drastic environmental changes, resulting in population declines and sometimes extinction. Global assessments have predicted rising extinction risks for over a million species, but scientists have not clearly understood how exactly this growing risk is linked to climate change. The new study, published Thursday (Dec. 5) in the journal Science, analyzed over 30 years of biodiversity and climate change research, encompassing over 450 studies of most known species. If greenhouse gas emissions are managed in accordance with the Paris Agreement, nearly 1 in 50 species worldwide — an estimated 180,000 species — will be at risk of extinction by 2100. When the climate model's temperature is increased to a 4.9 F (2.7 C) rise, which is predicted under current international emissions commitments, 1 in 20 species around the world would be at risk of extinction. Hypothetical warming beyond this point makes the number of species at risk rise sharply: 14.9% of species were at risk of extinction under a 7.7 F (4.3 C) warming scenario, which assumes high greenhouse gas emissions. And 29.7% of all species would be at risk of extinction under a 9.7 F (5.4 C) warming scenario, a high estimate, but one that is possible given current emissions trends. The increase in the number of species at risk increases steeply beyond the 1.5 C warming target, study author Mark Urban, a biologist at the University of Connecticut told Live Science. "If we keep global warming to below 1.5 C, in accordance with the Paris Agreement, then the [extinction] risk from today to 1.5 C is not a large increase," Urban said. But at a 2.7 C rise, the trajectory accelerates. Species in South America, Australia and New Zealand face the greatest threats. Amphibians are the most threatened because amphibians' life cycles depend heavily on weather, and are highly sensitive to shifting rainfall patterns and drought, Urban said. Mountain, island and freshwater ecosystems have the most at-risk species, likely because these isolated environments are surrounded by inhospitable habitats for their species, making it difficult or impossible for them to migrate and seek more favorable climates, he added. Limiting greenhouse gas emissions can slow warming and halt these growing extinction risks, but understanding which species and ecosystems are most affected by climate change can also help target conservation efforts where they're needed most. Urban hopes the results have an impact on policymakers. "The main message for policymakers is that this relationship is much more certain," Urban said. "There's no longer the excuse to do nothing because these impacts are uncertain." December 5, 2024 - Live Science This is an important topic, and if you're a journalist looking to learn more, we can help. Mark Urban is an international award-winning scientist; a professor of ecology and evolutionary biology and the Arden Chair Ecology & Evolutionary Biology at UConn; and a global expert on climate change impacts on nature. He is available to speak with media - simply click on his icon now to arrange an interview today.
