The New Horizons spacecraft approaches Pluto, offering humans their first close-up view of a solar system outpost, after a 10-year journey.
A warmer world will raise sea levels and trigger extreme weather events. You can prepare for these events, and the U.S. will help other countries do that.
Changing conditions in the Arctic may seem remote to you. But new science says conditions up north may influence the weather you'll have next winter.
U.S. officials welcome Pope Francis' message on climate change and share his belief that all people must be responsible for environmental stewardship.
After its first two years, the Power Africa campaign continues to boost electricity access, bringing light, computers and information into African homes.
Leaders of the world's top industrial nations say the world must go carbon-free if growth and prosperity are to continue.
Misuse of antibiotics created a monster called antibiotic-resistant bacteria. Better antibiotic use is the answer; everyone will be part of the solution.
More than 30 nations are taking up a clean energy challenge to deliver greener, more affordable and reliable light and power where it's needed.
The United States is adopting more renewable energy sources. Wind could meet 35 percent of the nation’s electricity demand by 2050.