By Patrick Cullis, CIRES and NOAA scientist

In Part 3 of this animated series, Casper and Peggy head to the very bottom of the Earth to visit the Amundsen-Scott South Pole Station, where NOAA scientists take critical measurements of our atmosphere far from the effects of human activity. Join them as they explore this incredible research station, run by the National Science Foundation.

Video by Patrick Cullis/CIRES (Cooperative Institute for Research in Environmental Sciences) and the NOAA Global Monitoring Laboratory