They’re making a lot of climate pledges, but they aren't being held accountable.
Watch the presumptive GOP nominee do a coal-mining dance. And don’t miss his rant about hairspray and the ozone layer.
Our new national mammal has arrived and she's fabulous.
The Park Service has a new plan to pay the bills.
Infamous coal baron Don Blankenship once bought a seat on the state's Supreme Court. Now the tables have turned.
Your Facebook feed is full of bad science writing. The "Last Week Tonight" host explains why that's dangerous.
As if sea-level rise wasn't bad enough.
A scary video zooms in on the destruction left behind the Fort McMurray wildfire.
Now he can focus all of his attention on promoting science denial in the U.S. Senate.