The Unknown Zone: Melting Ice - Ancient Microbes

Ancient microbes long trapped in their frozen tombs of the Arctic, Siberia, Greenland and Antarctica may soon see the light of day and may be cause for real concern.  Recent scientific investigations have shown that microbes as old as 750,000 years can be revived intact and then able to reproduce.  Coupled with an enormous biomass 1000 times the biomass of the entire human race, the warming of the ice sheets may cause a real life "Andromeda Strain" or "Contagion."

Judy Sellins and Dave Turco will banter about the possibilities of climate change and how plausible this scenario really is.  Oh and summers are going to get a whole lot hotter due to the melt off.