Forest Fires (IMAGE) University of Copenhagen Caption Forest fires and burning wood emits "heavy" methane, which can be traced in the analyses of ice cores in the ice cap on Greenland. Credit (Photo: John Tuttle, FWS) Usage Restrictions (Photo: John Tuttle, FWS) 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.