I just heard my friends at Good Morning America say, "It's 4 below zero outside ... with the wind chill."

We've heard about the Wind Chill Factor since we were kids, but what exactly is it? Here's a look at the new and improved wind chill chart and formula.

When Global Warming takes a break and the bitterly cold weather moves in from the Arctic, it's best to be prepared.

Layering is important, but there's a lot more you should know when you head into the deep freeze.

Here are some tips for surviving the cold weather ahead...

Bright sunshine awakens you on a cold winter morning. There's not a cloud in the sky. But as you look out the window, you see the ground, the trees, the cars - everything, covered with white.

It didn't snow, so where did all that white stuff come from?