Markus Rex/Alfred Wegener Institute via AP August 20, 2020 We pieced together the most precise records of major climate events from thousands of years ago. Here’s what we found Ellen Corrick, The University of Melbourne; John Hellstrom, The University of Melbourne, and Russell Drysdale, The University of Melbourne The “last glacial period” saw huge, rapid climate changes. Our new research found they happened all around the world, and each time within just a few decades.