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  20 March 2015 Last updated at 10:21 ET   Hydrogen, hydrogen everywhere... By Matthew Wall  Hydrogen is most commonly found in water - H2O - and in fossil fuels   Hydrogen is the most abundant element in the universe. And when you burn it or use it to produce electricity, the only waste product is water.In the era of global warming, it would seem to be the perfect fuel.So why aren't we all driving round in hydrogen-powered cars, moving our goods in hydrogen-powered lorries, and heating our homes and offices with this wonder element?In short, fossil fuels got there...

Audi Announces It’s ‘Mastered’ Hydrogen, Unveils First Fuel Cell Vehicle Giuseppe Macri 3:23 PM 11/19/2014 13 13         Audi announced it has mastered hydrogen fuel cell technology at the LA Auto Show Wednesday, where the company unveiled its new sustainable model — the A7 Sportback h-tron quattro.The German auto giant’s new entry into the plug-in hybrid market features a hydrogen fuel cell and twin electric motor drivetrain in the front and rear of the vehicle, which can carry the car some 341 miles between three-minute refuelings. The electric battery alone can carry the car about 31 miles on...