We've seen big advancement in the battery and electric car market over the past few years, but we are far from ending our dependence on oil. Big problems come from spending and practicality, and while producers say the prices will go down and technology will improve, many consumers just aren't buying it quite yet. But there's another problem on the horizon. There seems to be a better and cheaper way to get a car moving free of gas...Will the promise of the electric car ever be fulfilled or will liquid nitrogen take its place?
http://www.economist.com/blogs/babbage/2012/10/nitrogen-cycle
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