Looks like they're getting ready for the next cooling phase of the AMO/PDO. A return to "Ice Age Cometh" fear mongering to replace the "Oceans Boiling" fear mongering. Needless to say, the proposed "solution" to this will be the same, more taxes and less freedom, it's for the greater good.
Imagine if we actually transitioned back into another period of glaciation. We're currently in a relatively warm interglacial period, but that period is due to end imminently (any time in the next couple of thousand years) after which the Earth will be plunged back into another 80k years of glaciation due to orbital changes of the Milankovich Cycles. Global temperatures (predominantly polar) would drop by about 6 degrees, massive ice sheets would form and cover all of Canada, and the northern parts of the US and Russia. Glaciers would increase or reform in Southern parts of Australia and New Zealand and the Antarctic Ice sheet would dramatically increase. Sea levels would drop around 200 feet and the few who survive would be able to explore the ruins of the civilizations who lived on those now flooded continental shelves. Humans would survive this, as we have for hundreds of thousands of years. But the transition would be tumultuous, though sea level proxies seem to indicate that the transition into a period of glaciation is more gentle than the transition out of it (see meltwater pulse 1A for example).