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Why do humans walk on two legs? To save energy
July 23, 2007 Chimps on treadmills may help explain why human ancestors evolved into bipeds 10 million years ago.Images: Humans vs. chimps at the gymMIT-led study finds geothermal energy potential untapped
January 22, 2007 Heat mining technology can be improved and deployed broadly to generate clean electricity, says an Energy Department-sponsored report.Powering cities on landfill waste
June 6, 2007 A start-up is opening a plant that will convert municipal waste into electricity through a cleaner process than burning.Photo: Turning waste into energyCompanies urged to switch PCs off
October 24, 2005 Computers left on overnight for no good reason are costing U.K. companies millions of pounds every year.Report: Forget fueling cars on corn or soybeans
July 11, 2006 Think of ethanol as biofuel 1.0. Genetically modified plants or synthetic fuels could be the alternatives that gain traction.Energy hogs in your living room
November 22, 2005 What your plasma TV, digital video recorder and other gadgets are doing to your electricity bill. It's not pretty.Manufacturing power from manure
April 10, 2006 special report Start-ups are finding new forms of energy in an unlikely source: barnyard animals.Superweeds, air caves and the future of energy
May 23, 2006 Lawrence Berkeley labs chief says global warming may not be a 100 percent given but the potential consequences mean we have to act regardless.Get ready for the 9-to-5 notebook
June 6, 2005 Will your notebook work as long as you? Maybe, if a few component dreams come to fruition.Microsoft vs. Google: Who's greener?
June 6, 2006 The two Internet companies work to reduce energy use and promote sustainability as product battle heats up. Photos: Green companiesMIT issues call to arms on energy
May 3, 2006 University issues report calling for accelerated move to cleaner, more efficient energy sources.Stirring GE's Ecomagination
October 26, 2007 Lorraine Bolsinger, who heads a major energy-efficiency initiative at General Electric, says companies can make green while being green. Photos: Inside GE's clean-tech labsNobel laureate rings energy alarm bell
December 16, 2004 If the government doesn't start funding energy research, future generations might end up living in dark, nanotech scientist says.Creating power out of thin air
October 26, 2007 Imagine a material that can suck in heat from the environment and power a notebook. A New Jersey company is aiming to do just that.Microsoft: Let PCs nap
March 21, 2007 PCs allowed to go into sleep mode consume less energy than those running screensavers, study says.It's time for tech to rein in energy waste
February 16, 2007 Scientist Jonathan Koomey and AMD exec Mario Rivas say the amount of energy required to run data centers has gotten out of hand.Sensors: Living off scraps of energy
May 24, 2006 In the future, your shoes may be able to charge your camera and RFID chips could tell when you leave the room. Images: Energy-saving sensorsFather of the compact fluorescent bulb looks back
August 16, 2007 In 1976, Good Times ruled TV, Gerald Ford was trying to "whip inflation now," and in Ohio, a new kind of light bulb was being invented. The man behind the CFL looks back.Atomic clock could land in cell phones
February 8, 2005 Experimental clock loses only a second every few hundred years--and it could fit in mobile phones and other devices.Storing sun and wind power
December 5, 2007 Several technologies are being tested to tie large-scale storage to renewable power sources. Images: Making wind power that lasts all day
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