In the face of the emerging climate emergency (Letters, 10 December) and projected unconstrained growth in global fossil fuel use, this is a plea for people with relevant expertise and influence to take forward the idea for a “non-proliferation treaty” (NPT) for fossil fuels, floated by Andrew Simms and Peter Newell (theguardian.com, 23 October) and supported by Bill McKibben, Naomi Klein and others (Letters, 30 October).

The analogy between fossil fuels and fissile nuclear materials is imperfect, but it should not be overlooked that the nuclear NPT promotes cooperation in and equal access to “peaceful use” of nuclear technology. “Peaceful use” of fossil fuels could mean their continued but decreasing extraction, within enforceable limits constrained by the Paris agreement goals, and an offsetting role for carbon capture and geo-sequestration (funded by fossil fuel producers). Safeguards and oversight could be provided by a new United Nations monitoring agency, akin to the International Atomic Energy Agency, which could also administer a global fossil carbon budget.

Fossil fuel companies extract their products where relevant governments permit. The number of nations permitting extractions on scales that threaten all of us is greater than the number of nuclear weapons states, but it is nevertheless small. This could make rapid negotiation of a fossil fuel “NPT” relatively tractable. It would not even have to include all producer nations at first to be effective.

Hugh Richards

Stroud, Gloucestershire

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