Sixty mayors from around the world gathered at the Vatican and got encouragement from Pope Francis for their plans to cut CO2 emissions.
The emissions don't have any radioactive carbon, so dating artifacts could become a lot more difficult.
Ohio Gov. John Kasich doesn't "want to overreact" to global warming.
Climate change unites the religious right and big business, and GOP politicians cower before those two interest groups.
Fundraisers for her campaign include oil execs and dirty energy lobbyists, so no surprise she doesn’t have a bold climate agenda.
A new study shows that ocean acidification could drastically impact the world's phytoplankton populations.
The Last Week Tonight host says we have an embarrassing food waste problem.
Use this new tool to find out how much your state has heated up at night.
A document by Peabody Energy argues that “there are no demonstrated foreseeable effects of any GHG emissions.”