Jennifer Middleton is a Lamont Assistant Research Professor in the geochemistry division of the Lamont-Doherty Earth Observatory at Columbia University. Her research seeks to better understand the inner workings of Earth’s climate system using the chemical fingerprints of present-day phenomena and geologic records of Earth’s climate history. This work helps guide predictions for the way the oceans, atmosphere, ice sheets, and land surface will continue to respond to human-driven emissions of greenhouse gases. Middleton is committed to the promotion of justice, diversity, equity, and inclusion in STEM (Science, Technology, Engineering and Math) and in considerations of society’s best paths forward in the face of modern climate change.