>>>Couple points on that line of thought -- doing nothing about the climate will cost a lot more money than actually doing something about it. I do not know why you think Hawaii would end up back in the 19th century. We already use clean energy quite a bit here, and tourists from all over the world are not going to suddenly quite coming to Hawaii - which brings in like $1.5 billion to the islands every month.
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>How will they get there? Oceangoing ships are dirtier than aircraft and as you say, it would be terrible to increase use of those just so fat cat tourists can do the hula, or NY socialites can include Hawaiian pineapple in their fruit salad.

Some time ago here I did some back-of-the-envelope calculations, that showed that for freight, ships are ~50x more fuel-efficient than aircraft per tonne-km. That pretty much directly translates to CO2 emissions.

No efforts are made to clean up ship emissions (yet), so they output a lot of sulphur and particulates typical of heavy duty diesels. But there are no emissions controls on turbofans, either.