Katsumi Matsumoto is a Professor in the Department of Earth and Environmental Sciences at the University of Minnesota, specializing in oceanography and low-temperature geochemistry. His research focuses on carbon-climate feedbacks using physics-biogeochemistry coupled models of the global ocean, spanning from the late Pleistocene to future projections. Key projects include investigating phytoplankton chemical plasticity's role in the carbon cycle and analyzing dissolved organic carbon longevity in the deep ocean. He is also engaged in Lake Superior thermal bar formation studies via satellite imagery and numerical modeling. Ocean Biogeochemistry Group
Mary Lou Zeeman is the R. Wells Johnson Professor of Mathematics at Bowdoin College, specializing in geometric dynamical systems, mathematical biology, and climate modeling. Her work bridges theoretical mathematics with real-world applications in ecology, sustainability, and neuroendocrinology. Education: PhD in Mathematics from the University of California, Berkeley; MA and BA in Mathematics from the University of Oxford. Research focuses on population dynamics, resilience in ecosystems, and interdisciplinary approaches to sustainability. She co-leads initiatives like the Mathematics and Climate Research Network (MCRN) and contributed to the Mathematics of Planet Earth (MPE) 2013 initiative. Her teaching includes Biomathematics (MATH 1758/BIOL 1175) and Multivariate Calculus (MATH 1800). Key contributions include modeling hormone oscillations in the menstrual cycle, climate change impacts, and fisheries management policies. Her work emphasizes decision-support frameworks for environmental challenges. Grants and collaborations span NSF-funded projects on computational sustainability and climate change research, reflecting her commitment to applied interdisciplinary science.
Victoria J. Orphan is the James Irvine Professor of Environmental Science and Geobiology at Caltech, where she directs the Center for Environmental Microbial Interactions. Her research investigates microbial processes in anaerobic ecosystems including deep-sea methane seeps, hydrothermal vents, and coastal sediments using interdisciplinary approaches combining molecular biology, stable isotope techniques, and geochemistry. Her laboratory focuses on: Microbial partnerships in methane cycling Ecophysiology of uncultured archaea and bacteria Viral ecology in marine environments Biogeochemical impacts of microbial communities Blue carbon sequestration in seagrass ecosystems Professor Orphan has developed innovative methods including BONCAT-FISH and nanoSIMS for studying microbial activity in environmental samples. Her research group maintains active field programs in Monterey Canyon and hydrothermal vent systems, and develops high-pressure incubation systems for studying deep-sea microbes. She teaches courses on microbial ecology and evolution, and mentors graduate students through the Geobiology and Environmental Science programs.
Professor John Parnell is the Chair in Geology & Petroleum Geology at the University of Aberdeen , affiliated with the School of Geosciences and Department of Geology and Petroleum Geology . His research focuses on geochemistry, paleoenvironmental reconstruction, trace element cycling, and sedimentary systems , with significant contributions to studies of the Rhynie Chert, Bowland Shale, and Lewisian Complex. Research Interests Professor Parnell's work spans: Geochemical analysis of Paleoproterozoic and Neoproterozoic systems Trace metal mobility in sedimentary and metamorphic environments Organic carbon burial and its tectonic implications Planetary analog studies for Mars exploration Shale resource characterization and environmental impact assessment Recent Publications His recent articles highlight investigations into: Graphitization processes in Scottish Highlands marbles Sulphur isotope records in Precambrian successions Trace element dynamics in the Bowland Shale Biogeochemical cycling at the Precambrian-Cambrian boundary Labs & Collaborations He leads research in the Geofluids Group and collaborates with the Planetary Sciences Department on Mars analog studies.
Ferran Garcia-Pichel is a Regents Professor and Center Director at Arizona State University’s School of Life Sciences, affiliated with the Biodesign Center for Fundamental & Applied Microbiomics, Center for Biodiversity Outcomes, Water Institute, and Global Drylands Center. He holds a PhD in Microbiology from the University of Oregon (1999) and has been a faculty member at ASU since 1999. His research focuses on microbial adaptations in arid environments, including biogeochemical cycling, soil crust formation, and sustainable land restoration. Key interests include cyanobacterial sunscreen compounds (scytonemin), carbonate dissolution mechanisms, and hydrogen production. Teaching responsibilities include advanced microbiology, microbial ecology, and geomicrobiology courses such as MBB 495 Undergraduate Research and BIO 493 Honors Thesis. Awards span from the 2021 Regents Professor distinction to the 2023 Sperry Award for restoration science. His lab explores interdisciplinary approaches to study microbial communities in desert soils, marine intertidals, and atmospheric dust, with applications in climate resilience and biomedicine. Research highlights include biocrust restoration strategies, microbial nitrogen fixation networks, and the role of GABA/Glu signaling in spatial organization. Collaborations address global challenges like fugitive dust mitigation and carbon sequestration. The lab is based at the Biodesign Building B on ASU’s Tempe campus.
Nathan Yee is a Professor at Rutgers University, where he has held academic appointments since 2004. He earned his B.Sc. from McGill University (1997) and Ph.D. from the University of Notre Dame (2001), followed by postdoctoral research at the University of Leeds (2001-2003). His career progression includes positions as Assistant Professor (2004-2010), Associate Professor (2010-2016), and full Professor since 2016. Research Focus Yee's research integrates geochemistry and geomicrobiology to study: mineral transformation processes, interactions between metal ions and mineral surfaces, microbial influences on inorganic element cycling, and contaminant behavior in environmental systems. His work combines experimental approaches with modeling to investigate biogeochemical processes relevant to early Earth evolution, microbial metabolism, and environmental remediation. Key themes include biologically catalyzed redox reactions, metal isotope fractionation, and geomicrobial controls on contaminant transport. Publication Trends Yee's recent publications (2021-2025) demonstrate strong emphasis on microbial-metal interactions, isotope geochemistry, and planetary science. Dominant themes include: isotopic tracing of metal cycling (Ni, Cu, Hg), microbial redox transformations of contaminants (Se, Te, U), photochemical processes in early Earth systems, and astrobiological investigations of planetary bodies like Mars and Enceladus. Methodologies frequently combine laboratory experiments with geochemical modeling.
Jonathan B. Martin is a Professor at the University of Florida's College of Liberal Arts and Sciences. His research focuses on hydrogeochemical processes in diverse environments including carbonate karst aquifers, coastal systems affected by sea-level change, and deglaciated watersheds in Greenland. He leads the Research Coordination Network on Carbonate Critical Zones and holds an NSF grant for Greenland watershed studies. Education: BA in Environmental Science, Wesleyan University (1980) MS in Geology, Duke University (1987) PhD in Earth Sciences, University of California, San Diego (Scripps Institution of Oceanography) (1993) Research Interests: Martin's work examines geochemical fluxes driven by biogeochemical reactions coupled with hydrological flow. This includes: (1) Water-solute-isotope dynamics in carbonate karst aquifers like Florida's Floridan Aquifer and Bahamian/Yucatan systems; (2) Coastal aquifer-estuary exchanges impacting metal mobilization and greenhouse gas fluxes; and (3) Weathering processes in deglaciated landscapes affecting global carbon cycles. His lab develops field methods to quantify submarine groundwater discharge and contaminant transport. Publications: Recent articles demonstrate strong emphasis on climate-aquifer interactions, with recurring themes including Greenland glacial meltwater biogeochemistry, coastal karst aquifer responses to sea-level rise, and carbonate mineral reactions in global carbon cycling. Work frequently integrates field measurements with geochemical modeling. Laboratory: Directs the Hydrogeochemistry Laboratory with capabilities including ion chromatography, cavity ring-down spectroscopy, nutrient autoanalysis, and fluorescence spectrometry for studies of water-rock interactions.
Helen Jarvie is a Professor of Water and Global Environmental Change at the University of Waterloo, Canada. She holds adjunct and visiting professor positions at the University of Arkansas (Fluvial Sciences), Plymouth University (Environmental Chemistry), and the University of Tokyo (Water Quality Science), and is a UK Centre for Ecology & Hydrology Fellow. Her research centers on river-system biogeochemistry, with intense focus on nutrient (phosphorus and nitrogen) cycling, eutrophication, and water quality across watershed-to-global scales. She investigates how climate variability, land-use change, and human activities drive water-quality impairment, and develops strategies for improved nutrient stewardship to build resilience in water resources. Her work uniquely bridges the critical tension between phosphorus-dependent food security and water-quality protection, given phosphate rock's non-renewable status. Analysis of her 2015-2019 publications reveals dominant trends in phosphorus dynamics research, spanning watershed management, global phosphorus budgets, and the water-energy-food nexus. Key themes include unintended consequences of agricultural conservation practices on soluble phosphorus loads, stoichiometric responses to hydrologic extremes, and sustainable phosphorus stewardship frameworks addressing eutrophication while ensuring resource security for future food production.
Prof. Morten Hvitfeldt Iversen is a leading researcher in Polar Biological Oceanography at the Alfred Wegener Institute (AWI). He serves as Section Head of the Polar Biological Oceanography department and leads the bridging group 'SeaPump' collaborating with University of Bremen and MARUM. His work focuses on organic matter production, export, and transformation in oceans, linking small-scale microbial processes to large-scale biogeochemical cycles in high-latitude regions. Iversen pioneers optical techniques to study marine aggregates and their role in the biological carbon pump. Research interests include Arctic and Antarctic carbon dynamics, microbial ecology, and the impact of climate change on ocean systems. He leads projects like the 'SeaPump' initiative and contributes to the 6.3 sub-topic 'The future of the biological pump' under POF IV. His work integrates field observations, mooring data, and satellite measurements to understand carbon fluxes and their climate feedbacks. Recent articles highlight his focus on Arctic carbon sinks, microplastic impacts, and zooplankton roles in the biological pump. Iversen actively participates in expeditions aboard the Polarstern and uses advanced optical tools to study particle dynamics. His contributions bridge experimental and observational science to address global climate challenges.
Professor Tim Lenton is the Chair in Climate Change / Earth System Science at the University of Exeter and founding Director of the Global Systems Institute. With over 25 years of research experience, his work focuses on modeling biosphere-climate interactions, biogeochemical cycles, and climate tipping points. He has contributed to global climate governance frameworks, including the Global Tipping Points Report 2023 launched at COP28. Education: PhD in Environmental Sciences (University of East Anglia, 1998), BA Honours in Natural Sciences (University of Cambridge, 1994). His research spans Earth system science , climate change modeling , and ecological tipping points , emphasizing risks from nature loss and opportunities for societal transformation via positive tipping points . Recent activities include co-hosting the 2025 Global Tipping Points Conference and advising policymakers on net-zero strategies. Leadership: Directed the Global Systems Institute (2017–2023). Collaborations: Partnered with Bezos Earth Fund and institutions like Potsdam Institute for Climate Impact Research. Tim actively bridges climate science and governance, advocating for risk mitigation and socially just transitions through his work on planetary boundaries and system dynamics.
Jean-Pierre Gattuso is a CNRS Research Professor at the Laboratoire d'Océanographie de Villefranche (Sorbonne University) and Associate Scientist at the Institute for Sustainable Development and International Relations (IDDRI-SciencesPo, Paris). His research focuses on the impacts of ocean acidification and warming on marine ecosystems, as well as ocean-based solutions to climate change mitigation and adaptation. Current Roles : CNRS Research Professor, Associate Scientist at IDDRI-SciencesPo Past Positions : Research Professor at Shantou University (2006–2009), Visiting Scientist at Rutgers University and NCAR (2004–2005), Group Leader at Laboratoire d'Océanographie de Villefranche (1998–2004), and others. His research interests span ocean acidification , carbon and carbonate cycling , climate change impacts on marine ecosystems , and ocean-based mitigation strategies . He co-edited the first book on ocean acidification and contributed to IPCC AR5 and AR6 reports. Recent publications highlight his work on ocean alkalinity enhancement , CO2 sequestration , and climate policy integration . He has developed tools like FOCE systems for in situ ocean acidification experiments and standardized ocean carbonate chemistry analysis. Scientific Awards : Ruth Patrick Award (2020), Blaise Pascal Medal (2014), Vladimir Vernadsky Medal (2012), and others. Academic Memberships : Foreign member of the Chinese Academy of Sciences, elected member of the European Academy of Sciences, Academia Europaea, and founder of the European Geosciences Union. Gattuso has led the Ocean Acidification International Coordination Centre at the International Atomic Energy Agency and will co-chair the 2025 One Ocean Science Congress.
Prof. Dr. Ralf Merz serves as Head of the Department of Catchment Hydrology at the Helmholtz Centre for Environmental Research (UFZ) and holds a Full Professorship in Catchment Hydrology at Martin-Luther University Halle-Wittenberg since 2011. His career bridges hydrological modeling, flood risk assessment, and water quality analysis across diverse climates from Central Asia to Europe. MSc in Civil Engineering (Technical University of Karlsruhe, 1997) PhD in Hydrology (Vienna University of Technology, 2002) Habilitation in Hydrology (Vienna University of Technology, 2009) Research Interests span comparative hydrology, flood generation mechanisms, climate change impacts on water resources, and nitrate dynamics in river systems. His work emphasizes process-based understanding of runoff events and regional flood modeling through innovative approaches like the PHEV distribution framework. Scientific Contributions include over 100 publications (2003-2025) on: Flood frequency analysis in changing climates Groundwater recharge in arid regions Hydrochemical response to droughts Remote sensing applications for groundwater studies Multi-response calibration of hydrological models Key projects involve MOSES observatory development, TRACER research school, and Pamir Mountains glaciological studies. Recognitions : APART research grant (Austrian Academy of Sciences, 2006) Leadership extends to directing the Catchment Hydrology department and participating in European hydrological networks like the Bode Hydrological Observatory and TERENO infrastructure. His methodological advancements include flood time-scale analysis and event runoff coefficient regionalization.
Dr. Li Hailong is a Chair Professor at the School of Environmental Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen. He holds a PhD in Hydrogeology from the University of Hong Kong (2003), an MSc (1991) and BSc (1988) in Applied Mathematics from Fudan University. His academic journey includes professorships at China University of Geosciences-Beijing (2009-2020) and Anshan Normal University (1999-2009). Recipient of 2010 NSFC Outstanding Young Scientist Grant 2022 Dayu Water Conservancy Science and Technology Award 2008 Chutian Professorship (Hubei Province's highest academic honor) Dr. Li's research focuses on multi-component, multi-phase subsurface flows in coastal zones and their ecological/environmental effects. His work spans aquifer parameter estimation, ecohydrology, marine groundwater discharge, and computational fluid dynamics. Recent projects involve submarine groundwater discharge (SGD) quantification in Bohai Sea and Jiaozhou Bay using radium/radon isotopes. His publications in top journals like Nature Geoscience , Geochimica et Cosmochimica Acta , and Water Resources Research have been cited 7,072 times (H-index 49). He has led 19 research projects, including 6 NSFC grants and 973 Program subprojects. Dr. Li serves on editorial boards of Advances in Water Resources and Water Science and Engineering , and was Associate Editor for Hydrogeology Journal (2012-2015).
Professor Jaana Kaarina Bäck is affiliated with the University of Helsinki, serving in the Faculty of Agriculture and Forestry's Department of Forest Sciences. She leads the 'Ecosystem processes' research group and oversees ecosystem research at the SMEAR measurement network. Her work bridges forest ecology, atmospheric science, and climate change mitigation, focusing on forest-atmosphere interactions and biogenic volatile organic compounds (BVOCs). PhD in Physiological Plant Ecology (University of Oulu, 1994) Docentship in Forest-Atmosphere Interactions (University of Helsinki, 2010) Docentship in Plant Ecophysiology (University of Oulu, 1998) Bäck's research explores how boreal forests influence atmospheric composition, carbon cycling, and climate dynamics. She investigates BVOC emissions, ecosystem responses to climate change, and feedback mechanisms between vegetation and the atmosphere. Her recent publications (277 total) analyze carbon dynamics after forest thinning, aerosol production in boreal ecosystems, and harmonized environmental observations via eLTER. These works span soil functions, air quality, and climate risk research. Knight, First Class, Order of the White Rose of Finland (2021) Open Science Award (University of Helsinki, 2018) Pro Scientia Award (Finnish Academy of Sciences and Letters, 2017) Bäck supervises 3 postdoctoral researchers, 4 doctoral students as main supervisor, and 12 as co-supervisor. She has secured over 6 M€ in research funding, including EU Horizon grants and Academy of Finland projects.
Pietro de Anna is an Associate Professor at the Institute of Earth Sciences (ISTE), University of Lausanne, since August 2021. He holds an Italian nationality and completed a Master's in Theoretical Physics (2009) at the University of Florence, followed by a PhD in Earth Sciences at the University of Rennes 1 (2012). His research focuses on reactive transport in porous media, filtration, and interactions between bacteriological activity and flow dynamics. He directs the Environmental Fluid Mechanics Laboratory since 2015, employing microfluidics, numerical simulations, and theoretical models to study coupled physical, biological, and chemical mechanisms in confined systems. He has published 21 peer-reviewed articles, teaches environmental science courses at the Bachelor's and Master's levels, and supervised two PhD theses and four postdoctoral researchers. His work includes investigations into microbial biomass accumulation in porous media, diffusion-limited mixing, and biocementation processes. Key research themes are spatial heterogeneity effects, chemotaxis, and quorum sensing in microbial systems. He has pioneered methods combining microfluidics with microscopy to analyze transport at pore scales.
