U.S. Methane Emissions are 50% Higher than Official Estimates

America's natural gas system is leaky and in need of a fix, new study finds.

U.S. General talks Challenge of Sea Level Rise, Climate and Security Nexus

About the delicate relationship between “natural” and “national” security

U.S. Army seeks solution to cool down soldiers

The U.S. Army is searching for ways to keep soldiers cool as they face dangerously high temperatures in the field.

U.S. and China Strike Historic Climate Change Deal

A variety of polls show that a majority of American voters now believe that climate change is occurring, are worried about it, and support candidates who back policies to stop it.

U.S. and China ratify Paris climate agreement

Campaigners hail key moment in battle against global warming as presidents Obama and Xi announce deal on eve of G20 summit in Hangzhou.

U.N. report details last decade’s climate extremes

The United Nations issued a report saying the planet saw "unprecedented climate extremes" in the last decade with every spot on the globe affected in some way.

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