December 7, 2013; 3:35 AM ET
A bitterly cold and snowflake-filled weekend is in store for the Windy City. more >
Rises at 7:13 AM with 9:09 of sunlight, then sets at 4:22 PM
Rises at 2:06 PM with 14:26 of moolight, then sets at 4:32 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.