Tree Research (IMAGE) University of Missouri-Columbia Caption Old fire scarred trees provide the data on past fire frequency. Pictured below are fire scars on trees from throughout the eastern U.S., a region with varied climates and, in many places, significantly reduced fire activity in the last century. Credit Michael Stambaugh, MU College of Food, Agriculture and Natural Resources 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.