Synergetic Abatement of Carbon Emissions and Air Pollution in China

China needs to deal with climate change and air pollution. Both of them result from burning of fossil fuel. The Possible-Satisfiablity model is used to calculate optimum carbon emissions restrained by climate change and air pollution. The highest coordinate is (17.33, 0.41) in the P-S degree curves calculated under the restriction of climate change; while the highest coordinate is (10.84, 0.33) in the P-S degree curves under the restriction of environment. Environmental restriction on energy consumption and CO2 emissions is much stricter than the restriction of climate change.