If the problem is global warming, then we need to do something to eliminate to reduce the effects. What causes it is not important.
If you catch the flu, knowing whom you caught it from is really of little consequence. The goal is to get well.
Those who oppose doing something want to peddle increasing amounts of coal and oil and do not want to consider less polluting alternatives, because it prevents them from getting even richer.
Everyone with half a brain knows that the current economic policy cannot continue forever. It is not sustainable.
Corporations only care about the next year or at most the next few years when the CEO is running the company. When he has made his pile and retires, he could give a crap about what comes next.