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Welcome to Matt Ridley's Blog
Matt Ridley is the author of provocative books on evolution, genetics and society. His books have sold over a million copies, been translated into thirty languages, and have won several awards.

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Tourniquet

Alan Carlin has a peer reviewed paper in The International Journal of Environmental Research and Public Health, which concludes that climate policy is, in my terminology, a tourniquet for a nosebleed:

The economic benefits of reducing CO2 emissions may be about two orders of magnitude less than those estimated by most economists because the climate sensitivity factor (CSF) is much lower than assumed by the United Nations because feedback is negative rather than positive and the effects of CO2 emissions reductions on atmospheric CO2 appear to be short rather than long lasting.

The costs of CO2 emissions reductions are very much higher than usually estimated because of technological and implementation problems recently identified.