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The Messenger Immediate steps to sharply reduce emissions could still prevent the worst consequences of global warming, says famed NASA climatologist Jim Hansen. It's Not Too Early There is no escaping the reality that in the end, we will need an energy economy based on solar, wind and other renewables. The Oil Frontier Discoverer Deep Seas captures the new oil. The Dirty Secret Better technologies exist for extracting coal, a major source of carbon dioxide emissions. The challenge is getting people to adopt them. The Best Nuclear Option The U.S. Energy Department's fuel-recycling initiative could be a distraction from a more achievable goal: reviving today's nuclear industry and averting some carbon emissions in the short term. Brazil's Bounty: A Photo Essay A sun-drenched look at how this agricultural giant has become a global leader in biofuels. Beyond the Solar Panel The U.S. government plans to produce a buyer's guide to power-converting roofing materials. Cheaper, Cleaner Combustion A simple new design for combustion chambers used in power plants could slash the amount of pollutants and the costs to consumers. Related Stories Redesigning Life to Make Ethanol Energy from the Sea DOE's Blurred Nuclear Vision Rocky Start for CO2 Trading New Solar Technologies Fueled by Hot Markets Large-Scale, Cheap Solar Electricity More Powerful Fuel Cells Get Closer To Market MIT's Energy Agenda Nitrogen Fix Needed: An "Apollo Program" for Energy A Supergrid for Europe New Nukes in Europe Pumping Up Energy Research Energy Research Sputters

Advertisement Special Reports Homepage We've gathered our best writing on the most important topics of our time. View all of our special reports. More Special Reports Transportation: Tomorrow's Cars Worries over the future of gasoline supplies and the effects of carbon dioxide emissions on global warming are driving innovators to rethink how we get around. On the horizon: better batteries, cleaner fuels, and redesigned engines.

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