Looking Back at Arctic Warming (IMAGE) Kyoto University Caption Kyoto University and UCSD uncover a cause for the warming in the Arctic in the early 20th century. Credit Kyoto University 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.