Installing huge mirrors in space would help reverse global warming, but they would come at a price: less rain for the Americas and northern Eurasia. Previous studies have shown that geoengineering cannot restore both temperature and rain to previous levels.
Read more http://www.newscientist.com/article/mg21428695.700-space-mirrors-will-dry-out-us-and-eurasia.html
Read more http://www.newscientist.com/article/mg21428695.700-space-mirrors-will-dry-out-us-and-eurasia.html