How boulders in Mongolian mountains reveal the pace of climate change - Bulletin of the Atomic Scientists

How boulders in Mongolian mountains reveal the pace of climate change - Bulletin of the Atomic Scientists: Where most see large, unimpressive rocks, glacial geologists Aaron Putnam and Peter Strand see clues about whether the transition from cold to warm climates around 18,000 to 20,000 years ago—that is, the transition from the last ice age to a climate similar to the present day—occurred simultaneously across hemispheres. It appears they warmed together. The samples they’ve already studied from trips around the world—including this trip to the remote Altai Mountains in Mongolia—also hint that the shift occurred at a much faster rate than many previously suspected, a finding that has obvious implication's for today's human-made climate change.