Wild Fire (IMAGE) DOE/Pacific Northwest National Laboratory Caption Smoldering ponderosa pine fires contain alkaloids. Credit Alexander Laskin/PNNL Usage Restrictions Credit A Laskin/PNNL 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.