Michael Bloomberg began his climate crusade almost by accident. He went from being a Republican mayor who axed New York's recycling program to a Democratic presidential candidate who sniffs at President Obama as "not exactly radical" on climate change.

Presidential elections favor the incumbent. So we asked nine environmental experts what would happen to the global climate fight if President Trump is reelected next year.

FRANKLIN, N.H. — Democratic presidential hopefuls campaigning in the Granite State share a lot of the same ideas on climate change, but the way they present their solutions is vastly different.

Scientists say revolutionary transformations in society can limit the worst effects of climate change. None stands out for change more than the energy sector.

The Democratic presidential field has no shortage of climate plans. But will they work? E&E News examines the front-runners' proposals over the next five days to answer that question.

President Trump's main Republican primary challenger for next year's election says climate change may be his top issue.

President Trump is getting big help in his reelection from top executives in the fossil fuel industry. Democrats are also collecting cash from energy and environmental interests.