
Contents
Snapshot
Peter Kalmus is a climate scientist at NASA’s Jet Propulsion Laboratory (JPL) and a prominent climate activist. His work integrates scientific research with advocacy to address climate change.
Early Life and Education
Kalmus earned a Bachelor of Science in Physics from Harvard College and a Ph.D. in Physics from Columbia University. His doctoral research focused on gravitational waves, contributing to the field of astrophysics.
Career
At JPL, Kalmus utilizes satellite data and models to study Earth’s rapidly changing climate. His research includes biodiversity modeling, cloud physics, and severe storms. He has authored over 100 peer-reviewed publications and co-founded initiatives like Earth Hero and the Climate Ad Project.
Sustainability Highlights and Focus
Kalmus is committed to reducing his carbon footprint and promoting sustainable living. He practices civil disobedience to advocate for climate action and has written extensively on personal and societal changes needed to mitigate climate change.
Looking Ahead
Kalmus continues to bridge scientific research with activism, aiming to inspire individuals and communities to take meaningful action against climate change. His work exemplifies the integration of science and advocacy in addressing environmental challenges.

Dr. Alexander Tabibi is an entrepreneur, investor, and advocate for sustainable innovation with a deep commitment to leveraging technology for environmental and social good. As a thought leader at the intersection of business and sustainability, Dr. Tabibi brings a strategic vision to Green.org, helping guide its mission to inspire global climate awareness and actionable change.
With a background in both medicine and business, Dr. Tabibi combines analytical rigor with entrepreneurial insight.
