The US Supreme Court decided Honolulu's lawsuit seeking to hold Sunoco, Shell and ExxonMobil accountable for climate ...

The defense secretary job is as difficult as it is critical. Pete Hegseth, a television presenter and author, doesn’t have ...

Ever wonder if agriculture and green energy can work together? The answer is yes, and Jess talks with UCS experts Dr. Angel ...

Western states are the laboratory for cutting-edge climate policy—and we’re the lead scientist. Western states are the laboratory for cutting-edge climate policy—and we’re the lead scientist.

The short answer is: because we are human beings who believe in justice, and we want our work to reflect that belief. So, as an organization that works for “a healthy planet and a safer world,” we ...

The movement of wind and water, the heat and light of the sun, the carbohydrates in plants, and the warmth in the Earth—all are energy sources that can supply our needs in a sustainable way. A variety ...

Paul Arbaje is an energy analyst in the Climate & Energy program at the Union of Concerned Scientists. In his role, he analyzes the impacts of electricity policies in the United States, and advocates ...

Major fossil fuel companies studied climate change. Then they denied it. Now they should be held accountable. Major fossil fuel companies studied climate change. Then they denied it. Now they should ...

Roughly 9,500 nuclear weapons are hidden away in bunkers and missile siloes, stored in warehouses, at airfields and naval bases, and carried by dozens of submarines across the world. A single warhead ...

We need to act now. Climate change is one of the most challenging problems that humanity has ever faced. At stake are hundreds of millions of lives, innumerable species and ecosystems, the health and ...

Nuclear weapons are still here—and they’re still an existential risk. Nine countries possess nuclear weapons: the United States, Russia, France, China, the United Kingdom, Pakistan, India, Israel, and ...

Brenda Ekwurzel is director of scientific excellence at the Union of Concerned Scientists (UCS). In this role, she is responsible for ensuring rigorous, independent science to enhance UCS's ...