Word: coalã
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Dates: during 2006-2006
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...challenge, then, for creating cars that run on something other than oil—and, further down the road, generating the bulk of our electricity from something other than coal??€”is two-fold. We need a renewable energy source that doesn’t emit greenhouse gases. And we need a way of storing that energy in a form that can be driven around. The latter has few viable solutions: despite intense research, battery technology is still relatively poor, and hydrogen has all the disadvantages already discussed. For the former, we have lots of promising, but highly underdeveloped...