OK, go ahead and get the "Where's my global warming?" jokes out of your system. With the U.S. Midwest trudging through its second blizzard in a week, we understand.

But while it may seem contradictory at first, scientists say bigger blizzards fit the pattern they expect to see from a changing climate.

The immediate meteorological cause of the back-to-back snowstorms is a colder-than-normal mass of air that's been hovering over the central United States, combined with an amped-up jet stream that's been dipping south from Canada. That makes conditions ripe for major snowstorms after a warmer-than-normal January for most of the Lower 48.

FULL STORY on CNN.com