"I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait till oil and coal run out before we tackle that."
By 2030, global energy consumption is projected to be 55 per cent higher than it is today due to population growth, continued urbanisation, and economic expansion. The largest share of this growth will almost certainly occur in the developing world, with most of the additional energy currently projected to come from fossil fuels. But renewable energy technologies are now ready for use on a large scale and have the potential to meet world energy demand many times over, as Janet Sawin reports in this specially commissioned Overview. ... more