#CosmosMagazine The main points of this is that caves cover a greater geographic area than would be accessible from ice cores - the gold standard of climate records. The other surprise is how a tree root can suck the data out of your cave! The baby staligmite is a real surprise and triumph of Science
http://lessonpeer.com/drhillteach/Caves%20hold%20long%20time%20climate%20records.mp3
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