California Rim Fire (IMAGE) University of California - Berkeley Caption The 2013 Rim Fire in California burned more than 257,000 acres, the second largest fire in the Sierra Nevada and the third largest fire in California since 1932. A new study finds that carbon released through wildfires contribute more than expected to greenhouse gas emissions in the state. Credit Mike McMillan, US Forest Service 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.