The real "climate change" crisis will be the onset of the next ice age when the glaciers start moving south, chewing up arable land and populations start moving south. Something tells me the northerners won't be welcomed with open arms. Sharp swords, indeed.
Glad I won't be here to see it.
Around the time we speak of the Sargonite Empire went South and there was a 300 year drought in the Middle East. Blam had some research about this but I can naught remember the finer points.