And so, once again the arctic air mass slipped like an ill fitting toupe down one side of the orb, understand there is not more cold air, it's just here rather than there.

"If global warming is real then why is it cold? .........

The line is especially notable for its tone, which is usually hyper-confident and self-congratulatory, freighted with the assumption that there’s not a climate scientist in the world who can possibly explain cold regional short-term weather on a warming planet.  ..........

Never mind that the argument backing the phrase is logically identical to the argument that the arrival of night proves the sun has been extinguished forever. Never mind indeed that the very moment this latest round of witty rejoindering swept frozen North America, Australia was sweltering under a record-breaking heat wave. No, your typical deployer of the If global warming is real then why is it cold? trope is not just convinced he’s right but delighted by the certainty he’s just sprung a logical trap on you that will have you stuck in a snowbank till the next summer heat wave."

Borrowed for the sole purpose of offering you a chance to read more, it's by Sean Chu at 

http://desmogblog.com/