Imagine Orbiting Light Shields To Cool Venus

Some climate scientists believe that when the sun was less bright Venus had an atmosphere more like Earth. Then Sol's light output went up 30%. Deflecting 30% of the Sun's light from Venus would require massive orbiting sheets of metal (aluminum?). Could transhumans 100 years from now pull off such a feat? Cooling Venus seems more appealing than trying to make Mars hospitable. Mars lacks an atmosphere and is too distant from the Sun....

Source: FuturePundit - November 26, 2013 Category: Health Medicine and Bioethics Commentators Authors: Randall Parker Source Type: blogs