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Channel: The Why Files » alternative green energy
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Renewable Energy

New push for renewable energy: Solar hydrogen, wind farms and fuel cells all have potential -- and problems. More »

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Photovoltaic Advance

New photovoltaic (PV) cells combine polymer and inorganic semiconductors -- could be cheaper to manufacture. More »

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Can Ethanol Replace Gasoline? Should it?

Global warming gets worse. Petroleum grows scarce. Should we start making biofuels bigtime? If so, should we get the ethanol from corn, or from plant wastes? More »

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Questioning candidates

The candidates are skirting issues related to environment, energy and science policy. Heard promising plans for greener energy, solid science advice, or coping with the decline of oil? We neither......

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Global warming crisis: One expert’s view

Global warming crisis: One expert’s view ENLARGE Ten-year-old Moyna took a bath outside her flooded home in Bangladesh’s low-lying Ganges River Delta. The Delta is regularly flooded as cyclones create...

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