Figure 1 (IMAGE) Moscow Institute of Physics and Technology Caption Arctic air temperature anomaly variation since 1900. The thick red lines indicate two phases of abrupt warming. Data compiled by Arctic and Antarctic Research Institute. Credit Leopold Lobkovsky/Geosciences 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.