A Florida State University paleoclimatologist led the creation of a global database hosting thousands of seawater isotope measurements collected over almost 50 years that will aid scientists in generating more accurate climate reconstructions and predictions.

Associate Professor of Oceanography and Meteorology Alyssa Atwood led the Past Global Changes, or PAGES, project that created the new PAGES CoralHydro2k Seawater δ¹⁸O Database, a publicly accessible archive hosted by the National Oceanic and Atmospheric Administration National Centers for Environmental Information.

The database, presented in a recent publication by Earth System Science Data, reports the ratio of the heavy to light stable isotopes of oxygen, expressed as delta-oxygen-18 (d¹⁸O), and hydrogen, expressed as delta-hydrogen-2 (d²H), in seawater. It includes nearly 19,000 seawater isotope measurements.

Isotopes are variations of elements that differ based on the number of neutrons in the nucleus. Water molecules that contain heavier isotopes behave slightly differently than water molecules that contain lighter isotopes. Because of these tiny mass differences, the isotopes become unevenly distributed among the ocean, atmosphere and land, helping scientists to track the global water cycle.

“Water isotope ratios record how water moves among the ocean, atmosphere and land,” Atwood said. “In the ocean, water isotope measurements can track precipitation, evaporation, freshwater runoff from rivers and ice sheets, and ocean circulation patterns, which serve as powerful tracers of Earth’s modern water cycle. Because the hydrological cycle intensifies as global warming accelerates, seawater isotopes also provide important insights into how the global water cycle is changing as the planet warms. This database provides a robust observational framework to track these changes with unprecedented coverage.”

In addition to seawater isotope data, the database includes measurements of ocean hydrology, salinity, temperature and hydrogen isotope ratios where available. It also incorporates extensive metadata that describes sampling locations, depths, data collection and analysis methods and data quality, which are essential for proper quality control, inter-comparison and interpretability across datasets.

“As the team compiled these datasets, we also documented their strengths and weaknesses to provide a set of best reporting and data standardization practices to the community for the future,” Atwood said. “We’ve only scratched the surface in identifying how this data can help us understand how the ocean and global hydrological cycle are currently changing, how they’ve changed in the past, and what we can expect for the future. This database gets us one step closer to realizing that potential.”

Reconstructing historical climate data

The database also supports the development of past climate reconstructions. Seawater isotope data helps refine paleoclimate records based on the oxygen isotope composition of marine organisms such as corals, single-celled amoeba called foraminifera, and mollusks, a type of invertebrate. This allows scientists to make better estimates of past climate conditions and how they have changed over time.

“In this way, the database can help scientists to extend climate records back into the preindustrial era, contextualize modern climate change and improve future climate projections,” Atwood said.

Updating and centralizing seawater isotope data

This initiative began after an earlier CoralHydro2k project discovered that previous compilations of seawater isotope data were out of date. While significant advances in analytical techniques over the past few decades have led to a rapid increase in the quantity and quality of seawater delta-oxygen-18 measurements, much of this data wasn’t publicly available or easily accessible.

“Despite the wide-ranging applications of this data across oceanography, atmospheric science and paleoclimatology, there was no single, actively maintained place where scientists could find and use seawater isotope data,” Atwood said. “We sought to fill this gap by creating a comprehensive, up-to-date, global database of seawater isotope data.”

In the new database, more than half the data compiled comes from “hidden” datasets found in student theses, supplemental tables of journal articles, cruise reports and private research archives.

“The centralization of global seawater isotope data provides an unprecedented resource for improving large-scale synthesis efforts in oceanographic and paleoclimate research by making them more accurate and reliable,” said Michael Stukel, chair of FSU’s Department of Earth, Ocean, and Atmospheric Science.

The database also has a submission portal through the EarthChem Library, allowing researchers to submit new datasets and continue to grow the database, facilitating future research discoveries.

The project team consisted of volunteer scientists from all academic levels, including graduate and undergraduate students, postdoctoral researchers, and early career to senior-level scientists from academic and research institutions in the U.S., Germany, France and Portugal. The study was supported by the PAGES project, the U.S. National Science Foundation, the U.S. Department of the Interior, the Louisiana Board of Regents and the German Research Foundation.

Visit the FSU Department of Earth, Ocean, and Atmospheric Science website for more information about research conducted in the department.

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This summer, the newly established Florida Institute for Pediatric Rare Diseases at FSU will launch Sunshine Genetics, a statewide screening initiative designed to identify hundreds of rare genetic conditions in newborns before symptoms appear. Read more …

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As Florida State University celebrates its 175th anniversary, the milestone coincides with the national observance of America 250, offering an opportunity to reflect on how the university’s history has unfolded alongside that of the United States. Read more …

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Altony “Tony” Lee III began serving as chair of the FSU Alumni Association’s National Board of Directors on July 1, bringing to the role more than two decades of experience in higher education, nonprofit development and alumni engagement.

Lee’s appointment reflects his longstanding commitment to Florida State University as both an alumnus and volunteer leader. Through his service to the Alumni Association, including his role as vice chair, he has helped strengthen connections between alumni and the university while advancing initiatives that encourage lifelong engagement with Florida State.

“As a first-generation student, Florida State University provided me with a preeminent college experience and education,” Lee said. “I am honored to serve as chair alongside alumni who are deeply passionate about preserving our rich alumni traditions while embracing new ones.”

Beyond his service to Florida State University, Lee is interim chief of staff at Florida A&M University (FAMU), where he works closely with President Marva B. Johnson, executive leadership and the Board of Trustees to help carry out FAMU’s strategic priorities. In this role, he guides presidential initiatives and helps translate the president’s vision into action across the institution.

Before joining FAMU, Lee served as associate vice chancellor of public affairs for the State University System of Florida, where he helped secure increased investment in higher education. He also strengthened engagement between state policymakers and university leaders, helping ensure Florida’s public universities had a strong voice in decisions affecting higher education.

Throughout his career, Lee has served in advancement and development roles at Florida State University, Florida Atlantic University, Florida Gulf Coast University, Radford University and Zoo Tampa. Across those organizations, he helped secure millions of dollars in philanthropic support while building public and private partnerships that further their missions.

“Tony’s leadership reflects a deep understanding of both higher education and the lasting value of an engaged alumni community,” said Marla Vickers, vice president for University Advancement and president of the FSU Foundation. “His ability to build relationships and lead with purpose will guide the board as it builds on the Alumni Association’s strong tradition of service and engagement.”

Lee previously served as the board’s vice chair, and he will work alongside fellow directors to help guide the association’s strategic priorities and support its long-term vision.

Lee earned a bachelor’s degree in political science from Florida State University in 2002, a master’s degree in global and strategic communications from Florida International University and a doctorate in applied learning sciences from the University of Miami.

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Following the U.S. Men’s National Team’s (USMNT) recent World Cup exit, Florida State University coaching expert and former FIFA-certified referee Tim Baghurst says the tournament highlighted longstanding challenges in the nation’s youth soccer development system.

Baghurst directs the FSU Center for Athletic Coaching (FSU COACH), which prepares coaches and sports professionals at all levels. The USMNT’s run to the Round of 16, including its first knockout-stage win since 2002, energized soccer fans across the country. But the team’s 4-1 loss to Belgium also renewed debate about whether the U.S. youth soccer development system is limiting the country’s ability to compete with the world’s best.

Baghurst’s research examines health modeling in sport, stress and burnout in coaching and methods for coach evaluation and certification. He argues that improving youth soccer in the U.S. requires stronger physical education programs and more accessible recreational sports for teens, not just changes at the elite club level.

“The quantity and quality of physical education programming, combined with a lack of recreational sports for teenagers, are forcing youth and parents to choose and specialize in a sport far too soon,” Baghurst said.

Baghurst said one consequence is the country’s growing reliance on expensive club soccer, which can limit who gets access to meaningful development opportunities.

“In the U.S., there has been a systematic shift away from high school soccer toward club-based play,” he said. “This is in part due to the quest to seek ‘better competition’ or be seen by college scouts. Club soccer in the U.S. is more of a pay-to-play system than European models.”

Media interested in speaking with Baghurst about the U.S. youth soccer development system can contact him at tbaghurst@fsu.edu.

Tim Baghurst, FSU COACH Director, Anne Spencer Daves College of Education, Health, and Human Sciences

In the U.S., youth soccer is more of a pay-to-play product, while in Europe, professional clubs tend to fund development. Can this difference tend to drain the talent pool in the U.S.?

Yes. In Europe, youth are often recruited to professional academies, many of which are funded by professional clubs, with parents not paying. Professional clubs view the cost as a potential investment in their future, recognizing that emerging talent could contribute to their adult teams or even be sold to another team for significant profit. Conversely, in the U.S., participation is often limited to those parents who can afford the costs. This can also weaken the talent pool, as clubs are incentivized to keep players on their teams regardless of their skill level or potential, because fewer players mean less revenue. 

How can both youth physical education and recreational opportunities be modified to enhance youth development in soccer in the U.S.?

As a former physical education professor and teacher who has taught abroad, I’m well aware that there isn’t enough quality physical education in U.S. schools compared to other nations. Physical education is made optional for students in many states far too early, despite evidence of its long-term benefits for health and academic success. 

Second, by the end of middle school, recreational sports for youth are an afterthought in most communities. By then, it is expected that they know which sport they are good at and are competing for their school and club teams, often both. If a child has not shown promise by the end of middle school, there is little chance they will have opportunities to develop those skills in a recreational setting unless participating in adult leagues. Without opportunities to learn with other recreational-level players their own age, it is unlikely a high school-aged athlete will ever learn a new sport, even if it is the one they are most suited to. 

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Staying fit can become more challenging as you enter your 40s, when natural biological changes begin to affect muscle mass, metabolism and more.

A massive Swedish study that tracked participants for nearly 50 years found that fitness, strength and muscle endurance begin declining around age 35. But the study also found that adults who became active later in life improved their physical performance by 10%.

Michael Ormsbee, director of the Florida State University Institute of Sports Sciences and Medicine (ISSM), is one of the nation’s top nutrition experts. He has appeared in numerous interviews sharing his expertise on topics that range from nighttime pre-sleep feeding strategies, the importance of protein, maximizing human performance, metabolic health and more.

Ormsbee says people don’t need to abandon workout routines that served them well in their 20s and 30s. They simply need to adjust them as they age.

“I don’t think you need a completely different playbook. You just need to be a little smarter about how you apply it,” Ormsbee said. “One of the biggest mistakes people make is thinking they must train harder as they get older. In my experience, most people in their 40s are not overtrained. They’re under-recovered.”

The key, Ormsbee said, isn’t doing more. It’s recovering better and being more intentional about the habits that support long-term strength and health.

“Recovery starts to matter more,” Ormsbee emphasized. “Your body can absolutely adapt and get stronger, but you must give it the resources to do that. The fundamentals really don’t change. Strength training is still one of the best things you can do. Aerobic fitness is still incredibly important. Protein still matters. Sleep is still king.”

Media interested in interviewing ISSM Director Michael Ormsbee about ways to stay fit through your 40s and later may reach out to him via email at mormsbee@fsu.edu.

Michael Ormsbee, FSU Institute of Sports Sciences and Medicine Director, Anne Spencer Daves College of Education, Health, and Human Sciences

Does your body require a different type of training/dietary regimen as you age in your 40s?

What changes is how intentional you must be. If you’re sleeping six hours a night, skimping on protein, always rushing from one thing to the next, and trying to train like you did at 25, eventually that’s going to catch up with you. I’d rather see someone train consistently, recover well and stay healthy for years than go all out for a few months and end up injured or burned out.

What would be three of the most critical pieces of advice for those looking to stay in shape and live a healthy lifestyle in their 40s?

First, make recovery part of the plan. Exercise is the stimulus. Recovery is where your body actually adapts. Everyone wants to know about the latest recovery gadget, but the biggest wins are still the basics. Get enough sleep. Eat enough calories and protein. Stay hydrated. Plan recovery weeks when needed. Keep moving on your off days. Manage stress. Those simple habits consistently outperform the flashy stuff.

Second, don’t stop lifting weights. As we get older, maintaining muscle becomes one of the most important things we can do for our health. Muscle supports metabolism, bone health, physical function, and helps you stay active as you age. You don’t have to train like a competitive athlete, but you should challenge your muscles a few times each week. It’s one of the best investments you can make in your future. You don’t stop moving because you get old, you get old because you stop moving.

Third, stop chasing perfection and focus on consistency. Health is built from what you do most of the time, not what you do once in a while. You don’t need the perfect workout or the perfect diet. You need habits you can stick with for years. A few quality workouts each week, enough protein, good sleep, and staying active will beat the all-or-nothing approach every time.

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An interdisciplinary team from Florida State University’s Department of Earth, Ocean, and Atmospheric Science has uncovered new evidence about processes that may have contributed to ancient mass-extinction events, some of the most dramatic ecosystem reorganizations in Earth’s history.

Assistant professor of meteorology Michael Diamond, assistant professor of geology Emily Stewart, and geology doctoral student Lindsi Allman combined deep-earth geochemistry and atmospheric science to show that natural sulfur and carbon released from metamorphic rocks affects the environment in similar ways to emissions from volcanic eruptions, long considered the primary drivers of mass-extinction events.

The study, “Metamorphic sulfur release as a driver of sustained cooling and mass extinction,” was published today in Science Advances.

“Evidence shows that the process that wipes out species is a climate swing, or an oscillation back and forth between hot and cold climates,” said Stewart, who researches the effects of metamorphic fluids on Earth’s cycles and long-term habitability. “Some extinctions are correlated with the timing of eruptions in large igneous provinces, which are massive magmatic areas that have seen lots of volcanic eruptions and lava spewing out of Earth’s surface. As long as geology as a field has existed, scientists have believed that volcanic eruptions and their emissions were the primary trigger for rapid global cooling and climate swings. We found another process that contributes to these events: metamorphism.”

How it works

Metamorphic processes occur when rock under Earth’s surface is exposed to extreme heat, like when rock in large igneous provinces, such as the Ferrar large igneous province in Antarctica or the Siberian Traps in Russia, is heated by magma. If that rock contains sulfur and carbon, the heating process results in sulfur and carbon emissions, which allow them to seep out at the ground level as gases.

Sulfur emissions become sulfate particles in the atmosphere that act like tiny mirrors, reflecting some of the sun’s energy back into space. The Earth then absorbs less energy from the sun, leading to cooling spikes. Sulfates also act as “cloud seeds,” attracting water vapor to form clouds with liquid droplets that disperse water more efficiently and reflect more sunlight, also contributing to cooling spikes.

“Cooling spikes are the result of sulfur, which doesn’t stay in the atmosphere for more than a few days before dissipating,” said Diamond, who investigates how Earth’s climate is affected by cloud interactions with aerosols. “The opposite warming effect is due to carbon, which is also released in the metamorphic process but doesn’t react with other particles. Carbon remains in the atmosphere for hundreds, thousands or even millions of years. Even after sulfate-driven cooling spikes, the atmosphere is several degrees warmer than before due to carbon gas continually warming while sulfur aerosols cool and eventually disappear from the system.”

Ancient extinctions that may have been influenced by these emissions include the end of the Ordovician Period around 440 million years ago, when up to 85 percent of shallow marine species died, including many trilobites and corals. Another occurred at the end of the Devonian Period around 370 million years ago, when many marine species, especially reef-building corals and bony-armored fish like the Dunkleosteus, died out.

The end of the Permian Period, or the “Great Dying,” occurred around 252 million years ago and wiped out up to 96 percent of marine species and 70 percent of land species. Around 201 million years ago, the end of the Triassic Period eliminated many groups of giant reptiles that dominated land, sea and sky, making way for the rise of dinosaurs.

Why it matters

Although these events occurred millions of years ago, they provide natural experiments for investigating interactions and cycles among the solid Earth, atmosphere, oceans and biosphere. Understanding their causes helps scientists better understand the sensitivity of Earth systems to large-scale environmental change.

“Earth’s systems are deeply interconnected, and major environmental changes rarely result from a single isolated process,” said EOAS department chair Mike Stukel. “Scientific progress often comes from integrating geological observations, geochemical evidence, climate perspectives, and biological implications into a unified framework. This research demonstrates the value of bringing together expertise from multiple fields to better understand Earth’s past and its future, and it highlights why our department is such a special place.”

This work was funded by the American Chemical Society Petroleum Research Fund and several programs within the National Oceanic and Atmospheric Administration’s Climate Program Office.

“The more we study mass-extinction events, the more we see that they’re much more complex than we realized,” Stewart said. “In geology, we thought the question of what could drive ancient mass-extinction events was solved. The only way we broke this misunderstanding was by bringing in perspectives from another field, which pointed us to evidence that hadn’t been considered before.”

Visit the Department of Earth, Ocean, and Atmospheric Science website to learn more about research conducted in the department.

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A Florida State University geneticist has earned one of the most prestigious awards available to early career faculty for her work investigating how genetically identical individuals raised in the same environment, like identical twins, can still be different from each other.

Assistant Professor of Biological Science Amy Webster received a 2026 Faculty Early Career Development Award, or CAREER Award, from the National Science Foundation to study how genes are regulated to affect their traits. The award provides $1.1 million in funding. Webster is one of four FSU faculty members to receive CAREER awards so far this year, all from the College of Arts and Sciences.

“The Webster Lab is still relatively young, so this support provides momentum to build a strong foundation for the future,” Webster said. “We know our genomes are important for many of our characteristics, so we expect genetically identical individuals to be broadly similar. But we also know DNA sequence doesn’t predict everything about us. Many traits and diseases are influenced by the environment, and some differences arise in a seemingly random way. My lab studies how ‘noise’ in gene regulation can have important consequences for organisms.”

The CAREER Awards Program offers NSF’s most significant awards in support of early career faculty with the potential to serve as role models in research and education and lead groundbreaking advances in their fields. The award provides faculty with five years of funding to support students and conduct research while affording them the opportunity to work closely with NSF staff on developing their professional endeavors.

“NSF CAREER awards are prestigious and bring attention to the high caliber of our faculty,” said Karen McGinnis, associate dean of the College of Arts and Sciences and professor of biological science. “Dr. Webster’s combination of expertise in mathematics, genetics, and genomics allows her to tackle interesting and significant questions about genetic inheritance, evolution and variation among individuals.”

While a person’s DNA remains largely unchanged throughout life, how their genes are expressed can change due to environmental factors such as sun exposure, diet and stress. For instance, smoking cigarettes represses a specific gene that prevents cancer; when smokers quit, this gene can resume its cancer-fighting functions over time. Webster’s research focuses on how and why certain genes are flipped “on” or “off,” an area of the field known as gene regulation.

“By understanding DNA’s interactions with other factors to influence gene regulation, we can gain insight into how biological differences arise during an individual’s life,” Webster said. “Long term, this work helps us better understand why individuals differ in traits and disease risk, even when genetics alone doesn’t fully explain those differences.”

To study the interactions between an organism’s genome and environment, the Webster Lab raises and observes Caenorhabditis elegans, a microscopic roundworm that shares 60 to 80 percent of its genes with humans and can express half of all known human disease genes.

“Although they’re clones raised under identical conditions, we’ve found that some genes are regulated differently across individuals, which can affect important traits such as reproductive output,” Webster said. “We’re now working to understand why some genes are regulated consistently, while others are more variable. We’re also investigating how genome sequence and epigenetic modifications, the chemical changes influencing how DNA is packaged and regulated, contribute to these differences.”

Additionally, the award will enable the Webster Lab to investigate whether non-genetic differences that arise in one generation can affect subsequent generations. To do this, Webster will observe evolution in real time by employing experimental approaches allowing her lab to grow more than 200 generations of Caenorhabditis elegans populations.

NSF CAREER awards also support researchers’ investment in educating and training the next generation of scientists, and this award will bolster the Webster Lab’s offering of student opportunities in bioinformatics — a field combining computer science, statistics, and mathematics to analyze massive biological datasets — and artificial intelligence. For example, the Webster Lab employs these technologies to assist in identifying gene regulation patterns that are difficult and time consuming to detect manually.

“Since starting my lab at FSU, it’s been incredibly rewarding to see students and researchers become invested in the questions we’re asking and take ownership of their experiments and analyses,” Webster said. “We’ve accomplished a lot already, and I’m excited to see what we can do next with sustained NSF support.”

Webster joined FSU’s faculty in the Department of Biological Science in 2024 and earned a First-Year Assistant Professor Award in 2025. She earned a doctorate in genetics and genomics from Duke University in 2021 and was a postdoctoral scholar in the Institute of Ecology and Evolution at the University of Oregon before coming to Tallahassee.

Visit the Department of Biological Science website for more information on faculty research.

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