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Environment
How Car Companies Will Meet Obama's New Fuel Standards
By 2025, cars and trucks sold in the United States will have an average fuel efficiency of 54.5 miles per gallon, using technologies that exist today.
Environment
Gentlemen, Stop Your Engines: Greening Car Gizmos
Solar power could make cars more energy-efficient not by powering the engine, but all those other doohickeys cars have.
Environment
Making Hybrid Pickups Work for America
The idea of hybrid pickup trucks may offend some macho drivers, but Toyota and Ford are bringing them closer to reality.
Environment
The Wright Stuff: A Hunt for the Greenest Aircraft Ever
A look at the contenders in a Google and NASA-sponsored aviation competition to determine the greenest airplane ever.
