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The `how-to' of renewable energy / Daniel Kammen. Development in a changing climate. blog World Bank, 1/06/2011http://blogs.worldbank.org/climatechange/how-renewable-energyLast month, I blogged about the Special Report on Renewable Energy Sources and Climate Change Mitigation of the Intergovernmental Panel on Climate Change (IPCC), for which I  was a coordinating lead author. In that report we found that by 2050,  roughly 80 percent of global energy demand could be met by tapping  renewable sources. The IPCC’s best-case prediction is contingent on a  big caveat, however. It is that government policies must “play a crucial  role in accelerating the deployment of Renewable Energy (RE)  technologies”...