Market forces are hammering tar sands -- one of the dirtiest fossil fuels.
Satellite imagery shows how the complex has boomed since 2013.
Trump revived the controversial tar-sands pipeline. What happens next?
You can now peruse thousands of emails from Scott Pruitt’s time as Oklahoma attorney general.
It turns out plenty of their constituents DO care about climate change, clean water, and environmental regulation.
We don't have to see this moment as a crisis. It's an opportunity to start building a diverse, national movement to defend our environment.
The crack now stretches more than 100 miles in length.
Could California be powered by just sun, water, and wind in 30 years?
The agency will soon be charged with rolling back two major regulations on climate change and water pollution.