Climate Sensitivity (IMAGE) University of Copenhagen - Niels Bohr Institute Caption Climate sensitivity at different global temperatures in the atmosphere is shown. The figure shows from the right estimates for the past warm period, the PETM 56 million years ago, the period before the PETM and for the present. On the left the figure shows estimates for the Last Glacial Maximum. Credit (Credit: Gary Shaffer/ Roberto Rondanelli) Usage Restrictions (Credit: Gary Shaffer/ Roberto Rondanelli) 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.