Hybrid and alternative fuel vehicles.

there are drawbacks to every alternative, but some are better than others.
electric cars needs to be recharged too often. ethanol uses up more resource than gasoline. hybrid cars still use gasoline.
people seem to forget that bio-disel is an alternative fuel source too. bio-disel is recycled oil used by restaurants and such. all it takes is some time to filter it out and it works just like normal disel would. Disel cars get alot better gas milage compare to gasoline powered cars.