Canada before and after tar sands extraction. Producing tar sands oil is also at least three time more carbon intensive than making normal crude. © Jiri Rezac / WWF-UK
Some dirty oil news bubbled up over the weekend, as big oil companies including Shell and BP mobilise to try and stop tar sands oil being banned from the sixth largest economy in the world.
That would be California, personal fiefdom of 'surprisingly green governor' Arnie Schwarznegger. In an effort to cut vehicle emissions 10 per cent by 2020, he has brought in laws that require a cut in the carbon content of fuels sold in the state. "Our cars have been running on dirty fuel for too long," intoned Arnie, in his rich Austrian accent.
