I have found the discussion about the revenue potential of ecological taxes very interesting. Let me begin with a conceptual schema of types of environmental taxes, and some comments on the state of play. I then offer some gestimates of current revenues and comment on future revenue potential. Taxes on non-renewable resource extraction are widespread. Taxes and revenue generating TEP systems are uncommon for emissions and waste disposal, although not unknown.
Property taxes are common, but rates and coverage vary widely.
Other taxes on non-consumptive uses of land and other scarce physical resources are fairly rare. Other taxes on vehicle ownership etc can raise quite significant amounts, often around half of direct fuel taxes. Importantly, in most cases the structure and incidence of these taxes is not ideal in terms of effective pricing of scarce natural resources. Revenue potential depends more on politics than economics. It also depends on definitions and philosophical issues.