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Partly to mostly cloudy
Snow from late morning on
Partly sunny, breezy and cold
Mostly sunny and cold
A new storm will swing up from the Southwestern states, bringing a dose of accumulating snow and travel delays to Boston Tuesday. more >
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.