Scientists are studying stalagmites in a Polish cave to infer past weather patterns: <http://www.pbs.org/newshour/bb/science/jan-june09/rainfall_06-02.html>
Mark Minton
Scientists are studying stalagmites in a Polish cave to infer past weather patterns: <http://www.pbs.org/newshour/bb/science/jan-june09/rainfall_06-02.html>
Mark Minton