A2_8 Sunshades for the Earth

Mark Wilson, Ry Evill, Christopher Johnson, Samantha Rolfe


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 7.45x1012 m2 placed at the L1 point would be required.

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