And changes in precipitation patterns (I’ve seen evidence that reducing solar incidence is going to reduce ocean evaporation, independent of temperature).
There’s also the “double catastrophe” problem to worry about. Even if the median expected outcome of a geoengineering process is decent, the downside variance becomes much worse.
I still suspect MCB is our least bad near- to medium-term option, and even in the long term the possibility of targeted geoengineering to improve local climates is awfully tempting, but it’s not a panacea.
As an unrelated aside, that CCC link rates “Methane Reduction Portfolio” as “Poor”; I’d have marked it “Counterproductive” for the moment. The biggest long-term global warming problem is CO2 (thanks to the short half-life of methane), and the biggest obstacle to CO2 emissions reduction is voters who think global warming is oversold. Let the problem get bigger until it can’t be ignored, and then pick the single-use-only low hanging fruit.
(I’ve seen evidence that reducing solar incidence is going to reduce ocean evaporation, independent of temperature)
Of course, it may help that the way MCB reduces solar incidence is mainly through artificially increasing ocean evaporation. But it would be good to make sure of that.
And changes in precipitation patterns (I’ve seen evidence that reducing solar incidence is going to reduce ocean evaporation, independent of temperature).
There’s also the “double catastrophe” problem to worry about. Even if the median expected outcome of a geoengineering process is decent, the downside variance becomes much worse.
I still suspect MCB is our least bad near- to medium-term option, and even in the long term the possibility of targeted geoengineering to improve local climates is awfully tempting, but it’s not a panacea.
As an unrelated aside, that CCC link rates “Methane Reduction Portfolio” as “Poor”; I’d have marked it “Counterproductive” for the moment. The biggest long-term global warming problem is CO2 (thanks to the short half-life of methane), and the biggest obstacle to CO2 emissions reduction is voters who think global warming is oversold. Let the problem get bigger until it can’t be ignored, and then pick the single-use-only low hanging fruit.
Of course, it may help that the way MCB reduces solar incidence is mainly through artificially increasing ocean evaporation. But it would be good to make sure of that.