AGU is deeply alarmed by the Environmental Protection Agency’s plan to reverse its longstanding endangerment finding for greenhouse gases. This action undermines decades of rigorous scientific research showing that carbon dioxide, methane and other emissions pose a clear threat to human health and welfare.  

AGU stands firmly with the global scientific community: The weight of evidence is unequivocal, and regulatory safeguards must reflect the best available science. By reversing this critical finding, the EPA would not only jeopardize years of progress but also erode public trust in evidence‑based policymaking. We call on the Agency to uphold the endangerment finding and to recommit to policies grounded in transparent, peer‑reviewed research — safeguarding our planet and communities depends on it. 

You can act now in two ways: 

1. Take one minute and sign on to AGU’s formal letter to the EPA expressing the grave harm repealing the Endangerment Finding will have on human health and welfare. 
2. Submit your own public comment. Public comments are used during the rulemaking process as a means for the public to give feedback to agencies on the potential impact of a rule, provide additional data, and more. Read more from the Public Comment Project. AGU makes it easy to submit a public comment. Read our public comment toolkit and then write your comment and submit it in one step. To write an impactful comment, plan for at least an hour to read the proposed changes and write a thoughtful and technical response. A well-written comment should take at least 30 minutes to write.

Thank you for standing up for science.