Yes, Lord Lawson, this weather probably is the result of climate change. Do shut up.

The US is freezing.The UK is flooding. Alaska and Scandinavia are unusually warm. And, most remarkably, all of that has been going on for roughly the entire winter. It’s not just unusual weather; it’s consistently unusual.

A few years back, researchers suggested that strange weather in the temperate regions of the Northern Hemisphere might be a consequence of changes taking place in the Arctic. Now, with a few years of additional data, some researchers are arguing that we have detected clear signs that Arctic warming is driving our weird weather.

Santa’s revenge: Arctic ice may be putting US in a long, deep freeze | Ars Technica.