Previously, scientists have thought that the eruption of the Toba supervolcano some 75,000 years ago sent the world into an ice age, killing off many of the organisms including humans. However, recent study of the ice in the North and South poles from the region shows not a decrease in temperature but an increase. This is a hopeful sign for people because if a supervolcano eruption were to happen, we would not have to worry about an ice-age killing us all. The amazing thing about this is how the scientists not only saw a temperature increase based on the layers of ice in the arctic and antarctic, but just how they were able to identify that ice as the ice from the time period. WOW!