How is Obama's penalizing America's energy producers by clamping down on greenhouse emissions help if China's?

This covers all manufacturing plants, probably your own automobile, all electrical plants regardless of fuel used. It covers refineries. Everything that emits carbon. I can see them taxing us for breathing. This will destroy what is left of our economy and accomplish absolutely nothing at all. They say it will effect climate change yet this has not been proven. What caused the climate to change thousands of years ago. Even less than that. They don't know they just want our money and cause us all to live a more minimal lifestyle for their own purposes to spread the wealth to developing countries. That money from selling carbon credits will go to developing nations. Read up on it.