Could it be this easy?
According to an Oxford Study the best path to decreasing emissions in autos, in the short term, requires a serious decrease in weight and size.
Over the medium term, however, the study finds that hybrid cars, such as the Toyota Prius, offer “significant savings” while helping electric drive trains evolve.
While EVs, plug-in hybrids and fuel cell vehicles offer interesting potential long term, all have serious issues to overcome in the short to medium term, such as raw material availability.
Finally, first generation biofuels offer some localized uses. Second generation biofuels show more promise, but will still probably be constrained by land availability. Algae shows some probability of overcoming the land availability issue, but massive innovations and breakthroughs are still required.
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