December 10, 2013; 3:27 PM ET
The coldest air of the season so far is moving in for the middle of this week around Boston, in the wake of Tuesday's snowstorm. A new storm will move in this weekend. more >
Mostly cloudy with a passing shower
Clear and windy
Rises at 7:05 AM with 9:06 of sunlight, then sets at 4:11 PM
Rises at 6:37 PM with 14:18 of moolight, then sets at 8:55 AM
Dec 5, 2013; 5:00 AM ET December is a popular month to travel because of the holidays. Some of that travel is not helping the environment. Valerie Smock explains which mode of transportation is best for the Earth.