Also, some members of the Obama administration are vehemently opposed to Alberta oils sands oil being developed, and want to ban its importation to the US. The oil sands supply about half of the oil from Canada to the US. Oil sands reserves are estimated to be comparable to those of Saudi Arabia, but they require quite a bit of processing to be extracted.
The anti-global warming activists claim that this additional processing is emitting unacceptable amounts of carbon dioxide and the strip mining approach to extraction is irreparably destroying the local environment. Both claims are silly, in my opinion.