Many scientists say that we have a window, a very brief oppotunity, of perhaps 10 to 15 years in which to make radical changes to how we conduct our lives and our businesses in order to avert the worst… to create as soft a landing as possible. 

James Hansen, a leading NASA scientist, is one of those saying we only have a 10-year window.  Here are his warnings as reported by MSNBC, Common Dreams, and the Inhabitat website.