Local Boys Fishing on Lake Bosumtwi (IMAGE) University of Texas at Austin Caption Boys from nearby villages practicing traditional fishing methods on Lake Bosumtwi in Ghana. Large tropical trees submerged in 15-20m of water provide evidence of severe, long lasting droughts just a few centuries ago. Credit Photograph by J.T. Overpeck and W. Wheeler, University of Arizona 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.