Renewables could supply global energy demand by 2050 – report

"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." Engineering News