Advanced Search
Patrick O'Connor
Margaret O'Gorman
Jay O'Laughlin
Robin O'Malley
Collin O’Mara
Tim Oakes
Michael Obeiter
Rep. James Oberstar
Caitlin Ochs
Ilissa Ocko
Julie Oettinger
Sakari Oksanen
Lydia Olander
Anne Olhoff
Kevin Olp
Pia Olsen Dyhr
Andy Olsen
Pia Olsen
Mary Olson
Suzanne Olson
Juan Ontiveros
Jon Orcutt
Marian Orfeo
Dr. Madeleine Orr
Adam Ortiz
Beth Osborne
Mark Osler
Jake Oster
Andrew Ott
Jeff Overton
Stan Ovshinsky
Danielle Owen
Josh Owens
Raymond Paddock III
Jordan Palmeri
Rep. Jimmy Panetta
Joel Pannell
Shirell Parfait-Dardar
Vice Admiral Robert Parker
Michael Parr
Bill Parsons
Christine Parthemore
Jacqueline Pata
Ari Patrinos
Jacqueline Patterson
Lindene Patton
Anand Patwardhan
Jonathan Patz
Sign up for our free newsletters, publications & other email notices.
Congressional decisions on climate matter—give now!
Review EESI on GreatNonprofits!
Do you find our website useful? Do you value our briefings and fact sheets?
If so, please consider taking two minutes to say why EESI is useful to you!
Your review on the Yelp of nonprofits, GreatNonprofits, will help us provide you—as well as Congressional offices and the media—with fact-based information to help guide better policymaking.
YOU can make a difference with your review—be one of the 10 reviewers who make EESI a Top Rated Nonprofit again in 2026.
You can review EESI at www.eesi.org/rate.
Sign up!
Sign up for our free newsletters, publications, and briefing notices!
EESI does not sell, share, give, or trade e-mail addresses, and readers can unsubscribe at any time. View our full privacy policy here.
Advancing science-based climate solutions
Top-Rated Climate Nonprofit – 4-Star Charity