December 12, 2013; 5:31 PM ET
The coldest air of the season so far is settling in around Boston. A new winter storm will move in this weekend and tap into the cold air. more >
Sunshine, but cold
Rises at 7:09 AM with 9:00 of sunlight, then sets at 4:09 PM
Rises at 1:20 PM with 14:05 of moolight, then sets at 3:25 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.