Click our logo for the Sierra Club homepage.

Tar sands oil is the most toxic fossil fuel on the planet that leaves in its wake scarred landscapes and a web of pipelines and polluting refineries all while delaying our transition to a clean energy economy. It is an oil disaster that we can still stop.

Campaign Updates

6.27.14
This week the University of Dayton made news when it announced that "it will begin divesting coal and fossil fuels from its $670 million investment pool." UD joins a growing list of universities choo...
read more|
6.25.14
The proposed Chuitna coal mine in Alaska is the largest climate fight you've never heard of, says Laura Comer of Alaska Beyond Coal. If allowed, the mine would produce more carbon pollution than the ...
read more|
6.24.14
While the Republicans in the House of Representatives are great at making sure almost every week is chock full of terrible legislation that would please their Big Oil and King Coal buddies, this week...
read more|

Take Action!

Faces of the Tar Sands


Americans from Minnesota to Houston are worried about Canada's tar sands poisoning their air, water, and farmland. We profile 13 people whose health and livelihoods are at risk.

Save the Boreal Forest


Tar sands extraction destroys boreal forests that are home to grizzly bears, birds, and more. Learn about the boreal forest


Sierra Club® and "Explore, enjoy and protect the planet"® are registered trademarks of the Sierra Club. © 2014 Sierra Club.
The Sierra Club Seal is a registered copyright, service mark, and trademark of the Sierra Club.