What if they turn th temperature down too low and we have global cooling? I think we need a restraining order put on the environuts.
They could always put a magnifying lens in place of the mirrored lens and scorch the earth. That might raise the temperature a bit (too much).
They all think they can do a better job than God (the original designer).
One reason to prefer interdiction is space. It can work both ways. You can reflect solar radiation away from Earth or toward it.
Heat = Energy... the warmer the planet, the more food will grow, the less fossil fuels will be needed for heating... etc etc etc.. A few degrees warmer is NOT A BAD THING!
And frankly, none of it has anything to do with Human activity anyway....
And an execution warrant for Mother Gaia.