NASA
We use science to make change happen.
The Union of Concerned Scientists is a member-supported nonprofit that’s fighting for a safer and healthier world.
Our work
Podcast
The Latest Science on the Global Climate Crisis
Economist Dr. Rachel Cleetus discusses how global warming is impacting countries around the world and informing global action
Feature
EV Emissions Tool
Plug in your ZIP code to see how clean electric cars are in your area.
Report
Driving Cleaner
On average, battery-electric vehicles produce roughly half the global warming emissions of comparable gasoline-powered vehicles
Video
Why Climate Resilience Is Like a Tiger Chase
Everyone knows we need to cut emissions. But we need to start adapting too.
How we work
Accomplishments
Sander Yigin/Unsplash
Clean Truck Victory in Connecticut
Seizing the opportunity to clean up transportation in the state, UCS created an analysis on the benefits of cleaner trucks and cars and advocated with coalition partners to pass the Connecticut Clean Air Act—now law.