You can tax air travel to encourage travel by other means where applicable, or alternatives for work trips, or local tourism, or slow tourism, all kinds of things. Air travel itself may be defining and I don't envision getting rid of it; but the weekend trip to Vegas or Mallorca or Delhi is a defining feature of the present that is not sustainable in the future.

Taxing dirty electricity generation is regressive taxation, too; like I said, it's an original issue. A first step would be to pay out all the generated carbon taxes on a per capita basis.