UN Framework Convention on Climate Change (UNFCCC)

The U.S. withdrawal from the UNFCCC is a further blow to climate cooperation and a demonstration of U.S. foreign policy volatility.

Whatever the modest cost-savings that are generated by this U.S. withdrawal from the multilateral system, the loss of long-term influence will be far greater.

The U.S. State Department's former lead climate lawyer analyzes the many surprising and unusual aspects of COP 30 negotiations in Belem.

For international climate diplomacy to succeed, it cannot be tethered to partisan swings in Washington.

Brazil, the Parties, and other stakeholders should ensure the issue of "nationally determined contribution" emission targets lie at the heart of COP 30.

The results of COP29 were largely disappointing – but there were still moments that provide a roadmap for the climate agenda at COP30.

Despite the climate finance agreement, COP29 appears to have pumped the brakes on the momentum put in place after COP28 in Dubai.

The Tribunal issued the first-ever opinion by an international court articulating States’ obligations with respect to climate change.

The ITLOS decision is a major victory for the Commission of Small Island States on Climate Change and International Law.

ITLOS determined that UNCLOS requires parties to take specific, concrete steps to prevent, reduce, and control greenhouse gas emissions.