Smart Show (goharrison) with Cary Harrison – 12.21.15

ANTARCTIC ICE DRILLS: knowing whether rising carbon dioxide levels played a part, along with factors such as changes in Earth’s rotational tilt – would help scientists to better understand how ice sheets will behave as the world warms

Guest 1:  Al Jazeera America’s Jake Ward   

Inside Hitler’s Secret Nazi Bunkers (Exclusive)
Guest 2:  Cary harrison takes you under Berlin’s current subway system into the 3rd Reich’s recently-discovered bunker systems.