Temperature differences from average

I haven't actually heard "if we have global warming, why's it so cold?" recently.
But just in case - it's colder than usual here, but warmer than usual in the Arctic:
http://arstechnica.com/science/news/2010/01/why-the-us-and-much-of-europe-are-shivering-in-the-cold.ars

[EDIT: but there are people using the argument, and misrepresenting climate scientists as backing them up:
http://www.guardian.co.uk/environment/2010/jan/11/climate-change-global-warming-mojib-latif
http://www.guardian.co.uk/environment/blog/2010/jan/06/cold-snap-climate-sceptics

"Here's what Martyn Brown says in today's Express:

As one of the worst winters in 100 years grips the country, climate experts are still trying to claim the world is growing warmer.

There's a clue as to where he might have gone wrong in that sentence: "country" has a slightly different meaning to "world". Buried at the bottom of the same article is the admission that " ... other areas including Alaska, Canada and the Mediterranean were warmer than usual."

]