wildfire image (IMAGE) University of Washington Caption A firefighter in Idaho works after dark in 2008. Idaho is one of the places that the new study finds that the drying power of nighttime air has increased dramatically over the past 40 years. Credit Idaho Bureau of Land Management Usage Restrictions Must include credit License Original 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.