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Renewable energy investment heats up worldwide

Renewable energy investment heats up worldwide

From China to Mexico, renewable energy investments are hot.

Global investment in renewable power and fuels reached $270.2 billion last year, nearly 17% higher than in 2013, according to a new study on renewable energy investment from the United Nations Environment Programme.

This figure marks the first increase in three years. Together, wind, solar, biomass and waste-to-power, geothermal, small hydro and marine power are estimated to have generated 9.1% of the world's electricity in 2014, compared to 8.5% in 2013.

China led the pack as the location of the biggest renewable energy investments last year, with $83.3 billion, followed by the U.S. at $38.3 billion and...