KAKU ON THE WINTER SOLSTICE

Game of Thrones fans know it well… Winter was coming and now "Winter is here!" So says the King of the North, or, in this case, Earth’s northern hemisphere. The Winter Solstice is here and that means winter. As Americans bundle up for the coldest part of the season, CBS NEWS science and futurist contributor, Dr. Michio Kaku, joins CBSN on the shortest day of the year to discuss the Earth’s rotation and what it means for humans around the globe. WATCH NOW!