With the US Senate working towards a vote on the Keystone XL pipeline and President Obama’s January 6th press release indicating he would veto a Keystone bill if it reaches his desk, there is little chance you have not heard of the pipeline.  The proposed Keystone XL is intended to deliver Canadian Tar Sands across the United States to port towns in the Golf of Mexico.  As we’ve been watching the debate unfold over the last number of months we have been wondering what, exactly, is the carbon footprint that pipeline would be responsible for.  We were shocked and think you might be as well.