Listed and reviewed in Ecowatch zine dated July 12th. an article about Canadian Tar Sands II and new sludgy bitumen associated with Northern Alberta's limestone/dolomite region. The region could contain more than 500Billion barrels of 'Dolofudge', more than the combined recoverable reserves of Saudi Arabia and Venezuela.
But apart from the Climate Change debate the issue is the transportation of the crude. While the recent rail disaster in Lac-Megantic bolsters the argument of piping shalegas and petroleum the Canadian Tar Sands are far too corrosive to be transported by pipeline making Obama's Keystone XL Pipeline project not only controversial but also unfit for purpose.
The 350.org (350ppm) threshold is about the rate of consumption of hydrocarbons and the planets capacity to sequestrate carbon outputs from the atmosphere via rainforests mainly. Meanwhile the proposed carbon taxes are to being used by governments to pay off bad banking debts rather than protect and expand the planets forests. The hydrocarbon industry has only itself to blame for not producing it's own global transition plan directing taxes towards conservation, carbon sequestration and food sustainability and security measures.
If it were wise the industry would be assuming control of its own agenda lifting the response, above, beyond and beneath the machinations of governance and bad banking practices.