We want all the global warming we can get as fast as we can get it to help reduce the massive human die off in the coming ice age. Yes the ice age will come, no we cannot warm the planet significantly with CO2 due to the fact we have plants everywhere which convert it back to oxygen. We will want to do even more like figuring out how to release massive amounts of methane and figure out how to lengthen its half life in the atmosphere beyond 7 years. Soon all of Canada and half of the US will be covered in a half mile thick sheet of ice and there will be water to grow crops that is not locked in ice. OR You can do absolutely nothing but waste your own time by lowering your carbon foot print? You decide.