To justify their support for the Paris Agreement, some backers assume not only that all of today’s promises will be delivered, but that future climate conferences will lead to global pacts with ever larger carbon-cutting promises. They assume all of those promises will also be delivered. And then they attribute all of those imaginary, future reductions to the Paris Agreement. The global warming policy campaigners who run the influential Climate Action Tracker website make all these assumptions, and as a result they conjure fifty times more reductions from the Paris Agreement than were actually
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