To explore the connection between caves and climate, Kathleen R. Johnson has climbed down (and up) 200-foot ladders, kayaked all day in the dark and encountered pythons, jumbo spiders and other wild creatures. The associate professor of Earth system science recently discussed her underground adventures in a podcast hosted by Jonathan Van Ness. Johnson is a geochemist and a paleoclimatologist who specializes in reconstructing past climate changes by studying stalagmites from tropical and monsoon regions, with current projects in Laos, Vietnam and Mexico.
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