Thomas Stephen Bianchi
The 2026 Vladimir Ivanovich Vernadsky Medal is awarded to Thomas Stephen Bianchi for fundamental contributions to understanding the carbon cycle in aquatic ecosystems at the nexus of rivers, estuaries, and coastal oceans.
The 2026 Vladimir Ivanovich Vernadsky Medal is awarded to Thomas Stephen Bianchi, currently a Research Professor at the University of New Hampshore. Bianchi’s accomplishments have led to fundamental contributions advancing our understanding of the biogeochemistry and organic geochemistry at the nexus of rivers, estuaries, and coastal oceans. His research centers on the transport, processing, and burial of organic carbon along the land–ocean continuum, employing organic biomarkers and stable isotopes to trace terrestrial versus marine carbon sources in aquatic systems. One of Bianchi’s hallmark contributions is his work on the so called 'missing' terrestrial organic carbon in the coastal and oceanic carbon cycle, adopting the concept of the 'priming effect', where fresh marine organic matter accelerates degradation of older terrestrial carbon. He is also renowned for research demonstrating high carbon burial in fjords globally, revealing the role of human engineering in enhancing carbon storage in the Mississippi River delta, and exploring organic carbon burial and oxidation at the land–ocean interface. Furthermore, Bianchi developed a novel perspective on the paradigm of nutrient management in the Baltic. Bianchi has authored or co‑authored over 300 scientific articles and several influential books including the 'Biogeochemistry of Estuaries', 'Chemical Biomarkers in Aquatic Ecosystems', 'Biogeochemical Dynamics at Major River–Coastal Interfaces', 'Deltas and Humans' and on the Gulf of Mexico. He has been serving on the editorial boards of prominent journals in the field of biogeosciences, and is currently Editor-in-chief of the journal 'Marine Chemistry'.
Bianchi has also been a dedicated and inspiring mentor, both for this large and highly-diverse group of MSc students, PhD candidates and post-doctoral researchers, and for scientists around the world. Next to his commitment for the scientific community Bianchi has also demonstrated his ability to effectively articulate scientific arguments in public forums and engage the political sector. Bianchi’s scientific excellence has been recognised through Fellowships in major organisations, including the American Association for the Advancement of Science (AAAS), the American Geophysical Union (AGU), the Association for the Sciences of Limnology and Oceanography (ASLO) and the European Association of Geochemistry (EAG).
Given his outstanding achievements, Thomas Bianchi is clearly a very worthy recipient of the Vladimir Ivanovich Vernadsky Medal.