Also, carbon tax will be needed when we get all of the low hanging fruit. Solar, electric cars, and heat pumps make economic sense. But there are things that ar

Also, carbon tax will be needed when we get all of the low hanging fruit. Solar, electric cars, and heat pumps make economic sense. But there are things that are hard to decarbonize like shipping and airliners that will need to be forced to use green fuels instead of the cheaper fossil fuels. It would be better to start now with low tax and increase over time as we decarbonize instead of introducing it in a couple of decades at a high level. For one thing, the funds can be used to incentivize switching or help with problems.