A2_8 Sunshades for the Earth

This article examines the theoretical size of a sunshade that could be employed to combat the heating effects of climate change. It is found that a change in emissivity of as little as 0.06 could result in a global mean temperature change of around 4 K. To counteract this temperature change, a sunshade of area 7.45x10 12 m 2 placed at the L 1 point would be required.