They always weasel out of taxes. My idea was to give each person something like carbon coins that works like an emission permit. Give everyone the same amount each month and keep it within nature's limits. Then, if someone wants to do something polluting like run a datacenter, they'll just have to purchase the coins for that from the open market from those willing to sell. The end result is still money going to the poor but not as a tax, and hard limit on pollution.