So I would favor gearing up for climatological engineering projects like pumping artificial volcanic gasses into the upper atmosphere in case strong measures are needed.
I think that climatologists do not yet understand how the climate works well enough to predict the long-term outcome of such projects. But even if they could propose a reliable technological fix, I suspect that it would be opposed by an even larger majority of voters. A large part of the environmental movement views the GW as a moral problem whose roots are in corporate greed and consumerist attitudes of the general society. The solution therefore must involve repentance, penance and ultimately drastic reforms. Trying to bypass these stages with a cheap technological fix would feel like a poor attempt at cheating.
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