Abseil at Chary Canyon (IMAGE) Max Planck Institute for Chemistry Caption Charlotte Prud'homme is abseiling to collect soil samples. The 80-meter-thick sedimentary sequence in Charyn Canyon, Kazakhstan, documents climate change over the past 5 million years. Credit Charlotte Prud'homme, MPI for Chemistry Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.