UNION MEDALS, AWARDS AND PRIZES
James B. Macelwane Medal
Past Recipients

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2025 RECIPIENT
Laura E Condon
Dr. Laura Condon is an extraordinary researcher and a field builder, selected for the 2025 James B. Macelwane Medal for her pioneering contributions to simulating groundwater-surface water interactions under human influence. She is a hydrologist of e...
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2025 RECIPIENT
Roger R Fu
Roger Fu has transformed paleomagnetism through groundbreaking research that spans planetary formation, Earth history, and methodological innovation. His early work resolved a decades-old puzzle by demonstrating that the solar nebula possessed a magn...
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2025 RECIPIENT
Anna T Trugman
Anna Trugman has reshaped how the Earth science community understands forest responses to drought and disturbance by linking plant physiological mechanisms to landscape‑ and global‑scale dynamics. She integrates observations, experiments, and process...
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2025 RECIPIENT
Niko Wanders
Dr. Niko Wanders is recognized with the James B. Macelwane Medal for his seminal contributions to understanding and predicting hydrological extremes under climate change and human activities. In less than a decade since earning his Ph.D., Dr. Wanders...
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2025 RECIPIENT
Lei Zhao
Dr. Lei Zhao has emerged as one of the most influential and creative scientists in the field of urban climate and Earth system science. His research is transforming the broad field of global urban climate science and has fundamentally advanced the un...
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2024 RECIPIENT
C. Brenhin Keller
Professor Brenhin Keller is an exceptionally innovative scientist who has made key contributions to understanding the evolution of continental crust under biologic, marine and atmospheric influences. A pioneer in geoinformatics, Brenhin’s ability to...
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2024 RECIPIENT
Megan Konar
Megan Konar's research embodies the transformative power of interdisciplinary environmental science in the Anthropocene. Her pioneering work has fundamentally reshaped our understanding of the complex interactions between water resources, food securi...
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2024 RECIPIENT
Alexandra G Konings
Alexandra “Alex” Konings is transforming the broad field of global ecology. Her work has focused on the coupling between ecosystem carbon and water fluxes, which are critical for managing water resources and wildfire risks, estimating ecosystem carb...
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