Actor/Environmentalist Ed Bagley, Jr.'s worst nightmare, the Hummer, is turning over a new leaf and yes, its a green leaf. Steve Wozniak, co-founder of Apple, is planning to drive a hydrogen fuel cell-powered Hummer H1 from the McMurdo Station in Ross Island, Antarctica all the way to the South Pole.

Hydrogen fuel cells works like a battery but does not run down or need recharging. It produces electricity and heat as long as fuel (hydrogen) is supplied. Hydrogen is supplied to the anode, while the cathode is fed with oxygen. When activated by a catalyst, hydrogen atoms separate into protons and electrons. The electrons go through an external circuit, creating a flow of electricity. The protons go through the electrolyte to the cathode, where they combine with oxygen and the electrons to produce water and heat. So unlike its gas-guzzling cousins, Wozniak's Hydro Hummer is as friendly to the environment as Bagley's solar-powered wheels.

The journey will also run on star-power. Wozniak's co-pilot happens to be former astronaut and second human to walk on the moon, Buzz Aldrin. The trip will be for a research project which is sked to roll out in December 2007. The expedition will be filmed in 3D for Titanic director James Cameron.