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Photos: Earth-friendly cars

At U.N. World Environment Day 2005 in San Francisco, carmakers show off fuel cell-powered vehicles and more.

Earth-friendly cars

Mayors from around the world met at U.N. World Environment Day 2005 in San Francisco last week to create a plan for a sustainable urban future. At an opening day festival for the event, more than 60 companies showed off fuel cell-powered vehicles such as the new Honda FCX. Other carmakers showcasing fuel-efficient vehicles included Nissan, GM, DaimlerChrysler and Toyota.

Credit: Michelle White

Honda FCX

Earth-friendly cars

Honda's fuel cell stack provides power to the compact car. It can operate at temperatures as low as 4 below zero and as high as 203 degrees.

Credit: Michelle White

Honda's Fuel Cell Stack

Earth-friendly cars

The 705-pound ZAP Intimidator LUV electric car is more diminutive than intimidating. ZAP stands for "zero air pollution."

Credit: Michelle White

ZAP Intimidator

Earth-friendly cars

If the Intimidator is still too big for you, the company's Zappy Xpress scooter might do the trick. The $399 Xpress zips along at 17 mph and can travel up to 20 miles on a single charge.

Credit: Michelle White

Zappy Xpress scooter