Extracting clean fuel from sunlight
(PHYSorg.com Chemistry)

Securing enough energy to meet human needs is one of the greatest challenges society has ever faced. Previously reliable sources-oil, gas and coal-are degrading air quality, devastating land and ocean and altering the fragile balance of the global climate, through the release of CO2 and other greenhouse gases. Meanwhile, earth`s rapidly industrializing population is projected to reach 10 billion by 2050. Clean alternatives are a matter of urgent necessity.