Please list some of these Big Energy advertisers who oppose change.
BP, Shell, Chevron and other have research programs aimed at reducing greenhouse emissions (OK, not those who have big tar sand leases).

But Bobert, I agree that the approach emphasizing clean air, reduction of toxic waste and safe environment might be best at present.
Even here in Alberta, where people are drunk with money from the oil sands (what downturn?), some are uneasy about the biggest open pit mine in the world, destruction of forest and doubtful reclamation, overuse and contamination of water in its extraction, injection of solvents into the subsurface, quadrupling the area being dug, etc.