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With fuel prices rising and supplies dwindling, more and more inventors are turning their creativity towards cars that work without the need for barrels of gasoline. True, there have been a number of vehicles released that run on electricity but now designers are turning to another precious resource - air. It's not a new concept, as early as the 1920s, car designers were dabbling with the idea of cars that could run off air alone - one involved cycling air through a propeller at the front of the car - but few came to fruition. Now, designers are again looking at how air can be used to power a car.

SELLAFIELD HAS the world's biggest stockpile of plutonium and uranium and storage tanks contain highly volatile radioactive waste "more dangerous" than the Chernobyl reactor, according to a study published today. The study, Voodoo Economics and the Doomed Nuclear Renaissance, also says the British government is now unlikely to meet its 1998 commitment under the Ospar Convention to reduce "close to zero" Sellafield's radioactive discharges into the Irish Sea by 2020.

The U.S. government will spend tens of millions of dollars to assess and clean up uranium contamination across the vast Navajo Reservation, but the effort is unlikely to erase decades of frustration over what has been characterized as a slow and sporadic federal response. The new five-year plan is the first coordinated push to measure and fix the environmental damage that resulted from a Cold War hard-rock mining boom in Arizona, New Mexico and Utah.