William Watson: On climate change, adaptation has a big advantage

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William Watson: On climate change, adaptation has a big advantage fpcomment

You often read on this page that Canada only produces 1.6 per cent of the world’s greenhouse gases, which is true . I’m never sure exactly what people are trying to say when they stress that.

No one disagrees on that. But now, accept for a moment that greenhouse gases are a threat to the planet’s average temperature — and I do understand many readers are skeptical, whether of that basic proposition or of our ability to devise anything close to accurate predictions about where on the threat scale we currently are — what should a 1.6 per cent country do?

Do we change our behaviour, whether or not any other country does, so we at least can feel we’re doing the right thing? Do we keep lobbying others to change, promising as we lobby that when they change we will, too. Do we focus on big emitters — China, India, the U.S.

If you watched the parade of nations in the Olympic opening ceremonies, well, first: congratulations, you’re the only person who did. With over 200 countries/entities, it was, as many commentators pointed out, really boring television. But that’s the global problem. If carbon emissions were private goods, the emitters would pay the consequences. But carbon emissions are public goods — or, more precisely, bads. Carbon emitted anywhere affects the atmosphere everywhere for everybody.

Global public goods or bads are a big problem in a world of more than 200 entities. Ever try to get 10 people, let alone 200, to agree on which restaurant to go to? If President Xi fulfills his apparent ambition and takes over the whole shebang, that at least internalizes the externality: as dictator of the entire planet, he could change global behaviour. But even if global dictatorship did end global warming, that would be a high cost.

 

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fpcomment There's no 'adapting' to a 3C planet.

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