Dot Earth: A Sun-Powered Hydrogen (Toy) Car
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A solar-powered hydrogen car is here, with some fine print.
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Scientists have struggled for years to make electricity from the sunâs light, at a cost competitive with other power sources. Now they are close, using the sunâs heat instead.
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Sandia National Laboratories' "Sunshine to Petrol" project uses solar energy to recycle carbon dioxide and recover the building blocks of hydrocarbons, which can then be used to synthesize fuels like methanol and gasoline.
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Scientists have invented the first spray-on plastic that can turn the sun's infrared rays into electricity.
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True mobile TV. Connected cars. Personal robots. The coolest new gadgets and services are still found in the Land of the Rising Sun.
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Upstart NRG Dock shows off a general-purpose solar panel and battery to power electronics.
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An in-car satellite radio and multimedia system that could use out-of-date satellites is unveiled.
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The green sports car race is hyped this week with a hybrid Honda mean machine. Have fun, but hold off on the eco kudos -- these rides burn hydrocarbons. In Epicenter.
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Researchers are working on autonomous robots that eat to produce energy. The problem right now is that batteries are much better. By Lakshmi Sandhana.
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A team of US scientists show off a novel device that harvests energy from human movements.
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It isn't easy being green in an abstract world As Kermit the infuriating frog puppet once said "It's not easy bein' green" - especially as a software developer. OK you can do all things that everyone else does - buy a Toyota Prius hybrid or even cycle to work (as long as you avoid Lycra and silly helmets). You can scribble notes on recycled paper with a pencil (made of wood from managed forests) and turn your machine off standby. You can even diligently recycle your printer ink cartridges and offset your energy consumption by planting a few trees.â¦
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HAGA, Japan -- Diesel engines deliver great mileage, but emit polluting gases. Fuel cell vehicles have zero emissions, but look bulky. Honda's latest innovations counter the stereotypes.
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Two new facilities use solar power to produce hydrogen and biofuels, showing progress in the quest to add a little sun to your fuel tank. In Autopia.
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Tom Shannon's massive spherical blimp design boasts 7 million LEDs. Now the challenge is to get it built. In Gadget Lab.
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Unlike other hybrid vehicles that tout stealth, satellite navigation or energy efficiency, this vehicle claims to be the offspring of a motorcycle and a sports car. From Crave, CNET's gadgets blog.
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Russell Long already owns a pair of  fuel-efficient hybrid cars -- a Toyota Prius and a Honda Civic  -- but his dream car is not on the market yet: a zippy number  he could plug in to recharge at night that would get over 100  miles per gallon.
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Among the planned offerings: a hydrogen-based home-heating system and a tiny fuel cell built to power an MP3 player for 20 hours.