Francien Peterse, Associate Professor at Universiteit Utrecht, will receive the 2026 John Hayes Award from the GS. The award is given to a mid-career scientist for outstanding accomplishments that draw together multiple fields of investigation to advance biogeochemical science. It was created in 2017 by the Organic Geochemistry Division and a group of friends, colleagues, and students of John Hayes. Prof. Peterse is recognized for work that has significantly advanced the field of organic geochemistry by developing and applying biomarker proxies for continental climate reconstructions.