US Joins 21 Other Countries in Pledge to Triple Nuclear Energy Capacity by 2050

In the declaration, the 22 signatory countries pledge to ’support the development and construction of nuclear reactors.’

Participants attend Day Four of the U.N. COP28 Climate Conference at Expo City Dubai, United Arab Emirates, on Dec. 3, 2023. Sean Gallup/Getty Images

The United States and 21 other countries from four continents signed a pledge at the United Nations climate summit on Dec. 2 to triple global nuclear energy capacity by 2050 from the levels recorded in 2020.

The declaration was signed at the U.N. Climate Change Conference, also known as COP28, held in Dubai, United Arab Emirates. It recognizes “the key role of nuclear energy in achieving global net-zero greenhouse gas emissions by 2050 and keeping the 1.5-degree goal within reach.”