Clean energy has moved from the margins to the mainstream, and the proof is in the numbers:
- Revenues in four benchmark sectors (biofuels, wind power, solar photovoltaics and fuel cells are up 40 percent in one year, to $77.3 billion in 2007
- Clean energy market will hit $254 billion by 2017
Trends for 2008 and next:
- Small start-ups are powering markets for electric vehicles.
- sustainable cities are being designed and built from the ground up
- overseas players are powering the U.S. wind market boom
- geothermal energy is experience a global renaissance as a clean-energy resource
- new technologies are helping oceangoing ships take a cleaner tack
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