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Should U.S. energy policy focus on developing hydrogen fuel cells?Alternative FuelsFeb. 25, 2005
Should the government continue to promote ethanol as an alternative to imported oil?Biofuels BoomSep. 29, 2006
Are the environmental benefits of electric vehicles being oversold?Electric CarsJul. 9, 1993
Should the federal government require some electricity to come from renewable energy sources?Renewable EnergyNov. 7, 1997
Can renewable energy meet most U.S. electricity demand by 2030?Renewable Energy DebateMar. 15, 2019