KAKU ON MELTING POLAR ICE

2016 is expected to be the hottest year ever recorded. Climate scientists warn that polar sea ice is melting at alarming levels. CBS NEWS science and futurist contributor, Dr. Michio Kaku, appears on CBSN to explain what’s happening with the weather from a global perspective and to describe the factors that converted him from a skeptic into a concerned believer in the climate change crisis. WATCH NOW!