EOS: Five Weird Archives That Scientists Use to Study Past Climates

EOS: Five Weird Archives That Scientists Use to Study Past Climates. “Long-lived trees aren’t necessarily found everywhere. You can’t take an ice core in a desert. As a result, evidence for climate fluctuations on local and regional scales is lacking around the world. To solve this puzzle, scientists get creative. They’re examining nature for whatever they can find that lays down layer after layer over a large chunk of time in relatively undisturbed environments. And in the process, they’ve stumbled on some new, intriguing archives. Here are five of the weirdest ones we’ve found.” Aqueducts! Whale earwax!