“The Stern review, published in 2006, pointed to a 75% chance that global temperatures would rise by between two and three degrees above the long-term average; he now believes we are “on track for something like four “.

To understand what we need to do to prevent more extreme weather damage, spread of sickness like dengue fever caused by mosquitoes, more crop failures, collapse of marine foodstocks etc etc check this explanation of the science at 350.org, established in 2007, partly triggered by the blunder of Lord Stern

>read more> – http://www.350.org/about/science