Methane Flame (IMAGE) University of Alaska Fairbanks Caption UAF researcher Katey Walter lights a pocket of methane on a thermokarst lake in Siberia in March of 2007. Igniting the gas is a way to demonstrate, in the field, that it contains methane. Credit Photo by Sergey Zimov Usage Restrictions The University of Alaska Fairbanks Office of University Relations makes high-resolution photographs available to the news media for non-commercial uses only. All uses are for one-time, exclusive use in one publication or production only. Due credit will be given to the photographer whose name is provided by UAF Office of University Relations. Other image requests can be submitted via our online image request form at: http://www.uaf.edu/univrel/image_request.html. Movies on the UAF website can not be used without permission. For more information or to obtain broadcast quality footage, send an e-mail to newsroom@uaf.edu. Media outside Alaska: If you use images provided by UAF we'd appreciate knowing about it by dropping us an e-mail at newsroom@uaf.edu and alerting us to the publication date or web URL. 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.