Some $56.6bn was funneled into the clean-energy space in the third-quarter of 2012 – down 5% sequentially and 20% year-on-year, according to Bloomberg New Energy Finance (BNEF).

Solar energy remained by far the largest investment destination, falling 22% year-on-year to $33.8bn. Investment in wind, the second largest, dropped 23% to $15.5bn.

The weak third quarter means the clean-energy industry, which includes everything from biofuels to electric vehicles, is all but certain to fall short of the record $280bn it notched up last year.

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