IPCC: 30 years to climate calamity if we carry on blowing the carbon budget | Environment | The Guardian

IPCC: 30 years to climate calamity if we carry on blowing the carbon budget | Environment | The Guardian: "he report was its "carbon budget". Participants told the Guardian this was the last part of the summary to be decided, and the subject of hours of heated discussions in the early hours of Friday morning. Some countries were concerned that including the numbers would have political repercussions.

The scientists found that to hold warming to 2C, total emissions cannot exceed 1,000 gigatons of carbon. Yet by 2011, more than half of that total "allowance" – 531 gigatons – had already been emitted.

To ensure the budget is not exceeded, governments and businesses may have to leave valuable fossil fuel reserves unexploited. "There's a finite amount of carbon you can burn if you don't want to go over 2C," Stocker told the Guardian. "That implies if there is more than that [in fossil fuel reserves], that you leave some of that carbon in the ground.""



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