It would appear that the global warming lobby is getting more and more desperate if their ideas for combatting climate change are anything to go by. The latest concept is reported here.
Personally I find such schemes very frightening. Scientists have yet to make a climate model that actually works but are "going ahead" with schemes to stop something they have yet to prove is happening. And the costs! $350 trillion is no small sum, in fact it is unimaginably huge.
Let's just suppose that the climate does change but in the opposite direction, heading straight for another ice age (there have been four cycles already so that is not as unpredictable as you might think). So there are a trillion mirrors up there, acting as a giant sunshade and hastening the cooling. It doesn't take much imagination to work out that the mirrors are not going to be removed in a hurry.