The Problem at a Glance (IMAGE) Institute for Basic Science Caption The combination of the temperature difference between the Atlantic and the Pacific oceans in addition to global warming increase the drought and fire season length in southwestern North America between 2010 and 2014. Normal conditions (grey) represent the natural variability seen in the period 1960-2015. Credit IBS 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.