OK so this is a developing an idea. Following on from ideas posted previosuly - that users of fossil fuels pay for the privilege of sinking humanity further into a hole from which it will never be able to dig itself out - why not broaden it from the suggested areas of 1. Air travel; and 2. International Shipping of any kind; 3. Crypto miners 4. Agnone who controls over a billion dollars in personal wealth Just some proceeds going to a global climate change kitty to cover the cost of replacing fossil fuel grids with renewable grids. When that is achieved, the levies come off. There would be a lot of unfairness in such a scheme, yes that is true. But it is much much less fair to hand to future generations a lemon planet, instead of our beautiful mother earth. It is time for this generation of adults to be brave and do things that are not comfortable for ourselves. Note the above proposals would barely affect your lifestyle. But is there an incumbent politician on the planet brave enough to propose 'user pays' policies like this to their own people, let alone to the UN? And are you brave enough to vote for it? These are the questions that will define humanity's future.