Union of Concerned Scientists

About Union of Concerned Scientists

The Union of Concerned Scientists (UCS) is an independent nonprofit organization that combines rigorous science with advocacy to address pressing global challenges. For over five decades, UCS has worked as scientists, engineers, economists, and advocates to develop and promote innovative solutions to problems including climate change, sustainable food and energy systems, nuclear weapons reduction, and racial equity. The organization puts science into action by guiding policy decisions, reducing risks, and improving lives through evidence-based advocacy and public engagement. UCS is guided by core values including science in service of people and the planet, justice and equity, integrity in examining evidence, and mobilizing people to build a healthier and safer world.