•

    US Coastal Real Estate at Risk

    Hundreds of thousands of homes are at risk of chronic flooding due to sea level rise over the coming decades.

    Read more >

Science for a healthy planet and safer world.

Latest News

Stay Informed via email from UCS

Join our online community

We depend on your support

Ways to give

Meet our Experts

Ricardo Salvador

Director, Food & Environment Program

Read Ricardo's blog >

See Ricardo's biography >

Meet more of our experts >
Our Progress

UCS Helps Win 100% Electric Bus Fleet in San Francisco

After a UCS and partner-led advocacy effort the San Francisco Municipal Transportation Authority—the second largest bus fleet in California—approved a transition to 100% zero-emission buses by 2035.

See more