According to a Pew Charitable Trusts survey, the United States has reclaimed the top spot in clean energy investment, toppling China from its number one global ranking. Meanwhile, investment in renewables around the world continues to surge, reaching$237.2 billion in 2011, up almost 8 percent from the previous year. Despite austerity measures, expiring tax credits and the continued global hunt for oil, developed and developing nations alike are striving to add more non-fossil fuels to their energy portfolio.
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