> It wasn't that long ago we used to worry about whether fuel was renewable or not, and about particulate pollution, acid rain, habitat destruction and other en

> It wasn't that long ago we used to worry about whether fuel was renewable or not, and about particulate pollution, acid rain, habitat destruction and other environmental externalities in general, not just CO2. From these points natural gas is relatively good, its main problem is CO2 emissions. I worry that focusing on CO2 would lead to going back from natural gas heating to biomass/wood heating, which could be CO2 neutral[1], but brings particulate pollution and other environmental externalities. [1] although often is not due to extraction and processing steps