We call the compounds in the atmosphere that trap Earth’s heat, such as carbon dioxide and methane, greenhouse gases. They occur naturally, but human activity has generated more and more ...

A third of the Arctic is now emitting climate-changing greenhouse gasses after thousands of years of storing them, according ...

Almost two decades ago, the atmosphere’s levels of methane — a dangerous greenhouse gas that is over 80 times as potent as ...

The climate has changed in the past, long before humans, so how do scientists know our recent warming is caused by man?

The key factor believed to underlie climate change is increased temperature, resulting from increased levels of greenhouse gases in the atmosphere (i.e., the “greenhouse effect”; IPCC 2007 ...