people actually caring + industry realizing they can save/make money (this will be a fight with the ones that will lose money, welcome to the free market) + government involvement = steps in the right direction.
lets hope the current activity and momentum continue grow. The cost of a barrel of oil needs to stay high, making things painful for many, but avoiding the outcome of the 70s when all the alternative energy activity was forgotten once the price of oil dropped back down to nearly nothing.