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?
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
