But you cannot get a 'free lunch'. Burning coal to produce power that you then use to convert the emission of CO2 into methanol is a dead loss.
"it takes electricity to catalyze CO2 and hydrogen into methanol, and it's not clear how cheap it is to manufacture methanol in places that don't have abundant, cheap geothermal energy"
Easier to use the green energy DIRECTLY. Why do so many people try this 'perpetual motion' logic anyway?