President Donald Trump is poised to roll back ambitious Obama-era vehicle mileage standards and raise the ceiling on damaging fossil fuel emissions for years to come, gutting one of the United States’ ...

(AP) Environmental groups hailed President Barack Obama’s warning about climate change in his second inauguration speech, but said the president’s words will soon be tested as he decides whether to ...

WASHINGTON • Taking climate change efforts into his own hands, President Barack Obama is proposing sweeping steps to limit heat-trapping pollution from coal-fired power plants and to boost renewable ...

President Obama plans to announce Friday changes that will make it harder for the coal industry to get mining leases, in his latest step in fulfilling a broad agenda to address climate change, ...

President Obama warned that climate change may fuel the spread of diseases traditionally seen in warmer climates, such dengue fever and West Nile Virus. "It is inevitable that if temperatures rise ...

YOSEMITE NATIONAL PARK, Calif. (AP) – President Barack Obama says climate change is the biggest threat to U.S. national parks. Obama says meadows are already drying out at Yosemite National Park in ...