Let's assume that, at least this time, we can put the genie back into its bottle and actually manage, thank to your grand master plan, to cool down the planet (or, at least, to prevent it from warming more).
The thing is, we still can't entirely control the climate, and we're still at the mercy of its evolution. And since it's not changing overnight anyway, I think that instead of misallocating billions of dollars we're better off just adapting to it by fighting its effects locally (you know, here in Ireland we're still buying heaters and warm clothes...)
Because, as history teaches us, a handful of scientists and politicians who think of our societies and environment as big machines they can tune to their will, as brilliant and benevolent as they are, will never outsmart the rest of us. Even worse, they will often create large-scale disaters.
Fighting it locally assumes that we can. It's not always so obvious. Global warming increases the risk of drought, flood, storms, a crop failures. Due to the reduce supply of clean water, and poorer health conditions from the lack of food, disease may more easily spread. In addition, new biological attack vectors for fast mutating viruses, bacteria and amoebas open up. New biological niches can spur a lot of fast evolution for simple organisms. With the high numbers of monoculture crops around the world, this increases agricultural disease risk.
It's not clear that you can prevent these things effectively: you can only try to mitigate them when they do happen.
The thing is, we still can't entirely control the climate, and we're still at the mercy of its evolution. And since it's not changing overnight anyway, I think that instead of misallocating billions of dollars we're better off just adapting to it by fighting its effects locally (you know, here in Ireland we're still buying heaters and warm clothes...)
Because, as history teaches us, a handful of scientists and politicians who think of our societies and environment as big machines they can tune to their will, as brilliant and benevolent as they are, will never outsmart the rest of us. Even worse, they will often create large-scale disaters.