In order to stand a chance of surviving climate change, we need to keep 80 percent of known fossil fuel reserves in the ground. (foe.org)
Up to 80 % of known fossil fuel reserves need to stay in the ground to stay within safe climate levels. (gofossilfree.org)
The accepted need to keep 80 % of known fossil fuels in the ground is not compatible with a fracking boom, however tough the regulations. (politics.co.uk)