James Hansen slams Keystone XL Canada-U.S. Pipeline: “Exploitation of tar sands would make it implausible to stabilize climate and avoid disastrous global climate impacts”

James Hansen slams Keystone XL Canada-U.S. Pipeline: “Exploitation of tar sands would make it implausible to stabilize climate and avoid disastrous global climate impacts”: "pX-axis is the range of potential resource in billions of barrels. Y-axis is grams of Carbon per MegaJoule of final fuel. The Canadian tar sands are substantially dirtier than conventional oil as the chart above shows (longer analysis here). They may contain enough carbon-intensive fuel to make stabilizing atmospheric concentrations of carbon dioxide at non-catastrophic [...]/p"