As a brutal winter storm takes shape, there are some eye-popping claims getting attention about the risk of "exploding trees." Here's what you need to know.

A tree-mendous freeze. Forecasters are warning that expected subzero temperatures could cause trees to explode as a brutal cold snap is expected to wallop most of the country in the coming days. Trees may split and burst across the Midwest and Northern Plains Friday and Saturday as a bitter Arctic blast from Canada sends temperatures plunging to roughly 20 degrees below zero,