As Saskatchewan's premier and 10 U.S. governors urge Pres. Obama to approve the Keystone (TRP)...

|By:, SA News Editor

As Saskatchewan's premier and 10 U.S. governors urge Pres. Obama to approve the Keystone (TRP) pipeline, environmental groups release a study that says refining the oil sands would create 5B tons of petcoke, perhaps accelerating global warming. The report says 15%-30% of a barrel of oil sands bitumen can end up as petcoke, whereas a lighter crude would have less than 2%.