Union of Concerned Scientists

The Union of Concerned Scientists (UCS) is a national nonprofit organization founded over 50 years ago by a collective of scientists and students at the Massachusetts Institute of Technology. Committed to using rigorous, independent science, UCS addresses pressing global challenges such as climate change, sustainable energy, nuclear safety, and food justice. With a dedicated team of nearly 250 scientists, analysts, and policy experts, UCS develops innovative solutions that prioritize human health and equity.

The organization's impactful work includes advocating for clean energy, promoting sustainable transportation, and mitigating the risks of nuclear war. Additionally, UCS actively engages communities and partners with over 1,500 local and national organizations to mobilize a grassroots network of 500,000 supporters, ensuring collective pressure for policy changes. Funded solely by individuals and independent foundations to maintain its integrity, UCS exemplifies a commitment to evidence-based decision making while striving for a healthier, safer, and more equitable future for all.