Nothing that damages the environment should be cheap. Oil prices and gasoline price should be way higher, artificially inflated in order to create a financial incentive to research/invent/adopt alternatives.
The same for industry. If it damages this fragile world we live in it should be either prohibited or expensive. Watch how fast we clean things up ouselves when consumers have to PAY for the environmental damage caused by the things they buy.
We need action now and Leonardo DeCaprio's speech at the opening of Climate Summit 2014 sums this up perfectly.