A trove of secret documents details the US government’s global push for shale gas.
The dirtiest states have less aggressive goals, but that doesn’t mean their task is easier.
Because like it or not, the EPA is about to crack down on the nation’s biggest source of carbon pollution.
On the controversial pipeline’s emissions, the paper of record got it wrong.
As IPCC report warns of climate impact on food security, researchers are looking at whether talking about food could break political deadlock on global warming.