Scientists doubt inventor's global cooling idea — but what if it works?

December 21, 2008 06:00 AM

UPDATED November 11, 2010 04:49 PM

More Videos

  • Video of dad reacting to baby's shots at doctor's office goes viral

    Antwon Lee of Georgia trying to comfort his newborn son Debias King Lee as he got vaccines in October made the rounds on social media and captured hearts.