Rainbow over waterfalls

Won International Protections to Preserve the World's Rainforests

UCS played a key role in winning international protections through a UN agreement for the world's rainforests.

Halved Global Warming Emissions in the Northeast

Climate experts relied upon UCS analysis to craft the Regional Greenhouse Gas Initiative.

Dramatically Cut Emissions from Cars and Trucks

After years of analysis and public engagement, we helped pass landmark emissions and fuel efficiency standards at the federal level—a signature UCS victory
President Barack Obama signing the START treat

Helped Reduce Nuclear Stockpiles in the United States & Russia

UCS technical expertise informed the US Senate decision to approve the New Strategic Arms Reduction Treaty.
Two men in white tyvek suits and masks

Provided Critical, Independent Expertise on the Fukushima Nuclear Disaster

UCS issued a report highlighting the steps the US government should take to increase safety and resilience at American nuclear plants.

Exposed Misinformation and Media Bias

A UCS analysis exposed extremely misleading climate coverage.

Won Protection for Scientific Whistleblowers

UCS won a landmark victory in Congress with the passage of a bill that explicitly grants whistleblowers protection.

Spotlighted How Restructuring US Food Policy Could Save Trillions

A UCS video and analysis, demonstrated the health and environmental benefits of restructuring our food system.
Two men with white USNRC hard hats look at document

UCS Fully Divests From Fossil Fuel Interests

After reevaluating our investment portfolio, we uncovered small fossil fuel holdings within "sustainability funds"—and immediately divested.
A file folder with red "not science" stamp covered in black oil

Revealed Climate Deception at ExxonMobil

A UCS report documented that ExxonMobil and other oil and gas companies knew about the dangers their products caused to the climate.