![][1] "Sustainable Energy for All" is the main theme for this week's Rio+20 United Nations gathering in Brazil. The challenge of making energy both accessible and sustainable has grown more complicated in the past year or so, and also more exciting. These are tough times for coal and other high-carbon sources of energy, while the news about clean energy is more promising.
[1]: http://www.renewableenergyworld.com//assets/images/story/2012/6/20/body-cheap-coal-is-dead-long-live-renewable-age-part-1.jpg
URL: http://www.renewableenergyworld.com/rea/news/article/2012/06/cheap-coal-is-dead-long-live-renewable-age-part-1?cmpid=rss
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