The last couple of winters across the central and eastern United States as well as much of Europe were on the cold and snowy-side of things, to say the least. And of course, anytime there is some type of weather misery, a particular segment of the population likes to trot out global warming as the culprit. Cold, snowy, winters are no exception (despite your apparent (mis)conception as to what global “warming” would entail). Ironically, a subset of this same segment of folks was fingering global warming as the reason for the string of warmer-than-normal winters immediately preceding our past two shiverers (Figure1).
Now comes word that things other than global warming can lead to winter weather extremes. While that may come as shocker to some, it should be a snoozer to the vast majority.