Several senators want to cut U.N. climate funding because they object to the U.N. treating Palestine as a state.
Solar advocates are suspicious.
This Republican presidential contender gets a lot of credit for his views on the climate, but his record on the issue has been mixed.
A new ranking of U.S. senators based on their climate activism puts presidential candidate Bernie Sanders among the top "climate hawks."
Here's why he's wrong.
The group intends to show that climate-denying Republican candidates are under the thumbs of major donors like the Koch Brothers.
The Senate's most vocal critic of the scientific consensus on climate change used the snowball as part of his case for why global warming is a hoax.
A group of Senate Democrats from the Northeast is pushing back on the Obama administration's proposal to open new areas of the Atlantic Ocean to oil and gas drilling.
The newly weakened Senate Democratic caucus is trying to muster all the opposition it can to the impending vote on the Keystone XL pipeline.