[gondramB]

I wasn't think so much of farming as effects on coastal populations, which are quite large.

[gnarledmaw]

I wasnt really talking farming either. Im suggesting moving, I believe Ive read that there would be a net gain in arable temperate land. Now I suppose that coastal populations could stay and try to grow gills or build megadikes around every city but I just dont see those things as being much in the way of a survival solution.

I understand that rapidly migrating masses can and have caused turmoil. The wise plan then, if sea levels show any significant, immanent or "rapid" rise, is for governments to do their best to work out plans to handle the situation in advance of migrant arrival and for individuals to stop investing in beach front property.

The PETM didnt swallow coasts overnight and whatever this event will come to be called (if anything) wont either. The only reason theres a "problem" is because some wish there to be one as a tool to control masses. Admitting that there is no way to dial down the output of the sun or that mankind has experienced many mass migrations just doesnt gain those few any additional power.