/sci/ - Science & Math

Couldn't we combat Global Warming more realistically since countries like China won't be cutting down on carbon emissions? Could we build satellites around the earth that have the capability of expanding into huge platforms on an intermitent basis to block out the sun's rays temporarily to lower the Earth's temperature back down to an acceptable rate and just use those whenever the temperatures start getting to high? Maybe even build a permanent sun blocking structure over the ice poles to ensure they don't melt?

Could this be feasibly done if all countries worked together on a scientific method to slow and reverse global warming?