Alternative FuelGearToyota Will Sell You a Hydrogen-Powered Car Next YearGearFeds Say Just One Car Out of 100 Will Be Electric in 2040GearBehold the World's First Tugboats Powered by Natural GasGearAmerican Firm Debuts First Airplane to Run on Natural GasScienceMars Rover Finds Good News for Past Life, Bad News for Current Life on MarsGearUnited Airlines Buys Big Into BiofuelsGearSolar-Powered Plane Breaks World Record for DistanceGearHitting the Gas: Aston Martin Goes Racing With HydrogenGearUniversity Team Wraps Up Work on Top-Secret Solar RacerGearNew 'Super Truck' Promises Huge Fuel Savings for Big RigsGearAt SXSW, Making the Most of a Meager Showing of Auto TechGear3-D Printed Car Is as Strong as Steel, Half the Weight, and Nearing ProductionGearSolar Panel Canopy Charges and Protects Your EVGearKite Powers EV Across Australia for $15 of ElectricityGearArtificial Photosynthesis Project Aims to Create Hydrogen FuelScienceThe Growing Pains and Pleasures of a Synthetic Biology Start-UpGearStaten Island Ferry Goes Green With Natural GasGearThe Diesels Are Finally Coming to the U.S. (If You've Got the Cash)GearSadistic Battery Abuse Makes Hybrids, EVs 'Ford Tough'GearSwiss Team Plans Solar-Powered Flight From California to New YorkGearMcLaren Supplying and Building EV RacersGearResearchers Flash-Cook Algae Into Biocrude Oil in a Minute FlatGearHow to Create Fuel out of Thin AirGearCroatia Breaks EV Speed Records With 1984 BMWMore Stories