100% Renewable Energy Possible by 2050, Says Greenpeace Report

http://ecowatch.com/2015/09/21/100-renewables-2050-greenpeace/

Greenpeace and DLR found that the investment necessary to reach a 100 per cent renewable goal will be a considerable US$1 trillion a year.

However, this will be more than covered by the US$1.07 trillion in savings on fuel costs alone in the same period, not to mention the vast co-benefits to human health and the avoided costs from climate change-related extreme weather that come with the renewable transition.