A new report out today from environmental groups shows that the Keystone XL tar sands pipeline would, if approved, be responsible for at least 181 million metric tons of carbon dioxide equivalent (CO2e) each year, comparable to the tailpipe emissions from more than 37.7 million cars or 51 coal-fired power plants.

New data reveals that a full 60 percent of gasoline produced at Keystone XL refineries was exported.

Existing analyses of the impacts of tar sands fail to account for a byproduct of the process that is a major source of climate change causing carbon emissions: petroleum coke - known as petcoke. Petcoke is the coal hiding in North America's tar sands oil boom.

What if you knew that smoking that one last packet of cigarettes was going to give you cancer?  Imagine if our understanding of cancer was so precise as to allow doctors to predict with virtual certainty that smoking that particular pack, which you just picked up at the corner store, would definitely be the last straw and cause you to contract life-threatening cancer?  Obviously, you would not smoke that pack.

In the world today, global warming is our collective cancer, and despite dire and clear warnings, the oil industry is still smoking away. The best climate science in the world tells us