No. It's fine that different technologies are used in different situations. The big problem is finding technologies which are cheaper than fossil fuels.
Not at all. Fossil fuels have to be phased out, so CO2 charges and tariffs will be increased until they are. What renewables + storage have to be cheaper than is the other non-fossil alternatives.
We didn't wait until low air pollution technologies were cheaper than just dumping soot and SOx into the air, we acted to stop the pollution. Because negative externalities are a shining example of where government action benefits society. CO2 also presents large negative externalities. This is why you see climate deniers try to argue there are no such externalities from CO2 emission, because they understand the logic for regulation becomes inescapable otherwise.
