Keystone XL pipeline
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Biden Must Nix Treaty Provisions That Allow Fossil Fuel Companies to Sue Governments Directly
Provisions that allow investors to sue countries are being used to undermine climate goals. The latest example: A $15 billion lawsuit from the Keystone XL energy company.
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The Presidential Candidates on Climate Change
The presidential election of 2016 will determine the United States’ role in confronting the global challenge of climate change, and preparing our nation to manage its impacts for years to come. Where do the presidential candidates stand today on these issues?

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
