The best answer I can find to the OP (REMEMBER, there was no specification that this just had to do with America, and its boresight polarized political views, quite the opposite; developing nations stand to suffer a lot more for example, given just-able-to-make-ends-meet issues):
A low carbon tax, not intended to damage the economy, or strangle out fossil fuels, but directed to fund alternate energy innovation…
(wolfpup and others have suggested similar things upstream)
…
A pretty good discussion is here (Yale):
“…decision by the Indian government was to impose a small tax on coal, with the proceeds to be invested in renewable energy technologies. That small levy — expected to raise $535 million in its first year, despite imposing a tax equivalent to only 35 cents per ton of carbon — met with no public protests. Yet it could have a substantial impact on helping India develop its own green energy technologies.”
“Emissions reduction goals will not be achieved by policies that seek to stimulate innovation by constricting, much less by reducing, economic activity.”
“Government must foster competition, pursue energy innovation using a public works model, and recognize the crucial role of demonstration projects. Governments should also become a major consumer of innovative energy-technology products and systems.”
…
And just to follow up my own post on the risk analysis front, there HAVE been models estimating cost, like these for America, which includes one by Nordhaus who comes up with only a few percentage points dent in the American GDP through 2100; others are more dour; you get complications with the discount rate, how to account for large disasters (even one can skew results), the GDP doesn’t account for everything, etc.
[QUOTE=watchwolf49]
So I’m sitting here trying to imagine every last actuary walking along the new dikes in southern Louisiana ignoring the effects of AGW…
[/QUOTE]
(err…not sure what you meant…I wasn’t suggesting actuaries ignore AGW(?), but that their risk analysis skills be used to give world-wide, national, regional estimates on the costs of climate change; accurate cost assessments can better help frame policy; I don’t care what the insurance industry does.)