> If we can keep the poles cooler, we could increase the ice cap, reduce melt, and affect only a small number of living creatures.
And more ice means a higher albedo, so more sunlight is reflected back into space. But I see the challenges of partial blocking as a lot higher than in the general case - you need to keep two hemispheres in place and synchronise them with the tilt of the planet as it orbits the sun.
And more ice means a higher albedo, so more sunlight is reflected back into space. But I see the challenges of partial blocking as a lot higher than in the general case - you need to keep two hemispheres in place and synchronise them with the tilt of the planet as it orbits the sun.