IAF-02-U.1.01 Earth Rings for Planetary Environment Control

Earth periodically, with impacts large enough to destroy most life on Earth. A recent world concern is the effect of industrial greenhouse gases in raising the overall global temperature, melting the polar caps, and raising sea level. Govindasamy et al., (2000) estimated that the expected doubling of CO2 in the atmosphere over the next century will warm the Earth by about 1-4 kelvins and raise sea level by about 1 meter. Not all scientists are convinced of human-caused global warming, but the temperature will rise, regardless of human action, as the world comes out of the current ice age. Reducing solar insolation by ~1.6 % shoul