Polity.org 3 February 2011.

The World Wide Fund for Nature (WWF) on Thursday released ‘The Energy Report’, in which it said that it was possible for 100% of the globe’s energy needs to be supplied through cleaner renewable energy technologies by 2050.

This, argued the report, could be done economically, and that nearly €4-trillion a year could be saved through energy efficiency and reduced fuel costs by 2050…

http://www.polity.org.za/article/wwf-2011-02-03