Severe climate change unlikely before we run out of fossil fuel

The total sum of all fossil fuel resources that industry considers accessible is reported every year in the BP Statistical Review. If we use this optimistic value then the total energy available from all reserves of oil, natural gas and coal equals 36 ZJ (Zeta Joules, 1×1021 joules), a gigantic quantity. This is more than our research group considers possible but is less than that needed for all the scenarios that families A1, A2, B1 and B2 require. The fossil fuel energy is insufficient.

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