The CPP's Climate Benefits Are Illusory. EPA claims the CPP will deliver $31 billion in climate benefits to the American people in 2030. That is impossible because, even assuming EPA climate sensitivity estimates, the CPP will avert less than 0.02 C of global warming by 2100 too small an amount to have any discernible impact on sea-level rise, weather patterns, polar bear populations, or any other climate-related variable people care about.