Warren F. Agena Myung W. Lee Margarita V. Zyrianova Kenneth J. Bird Ronald R. Charpentier Troy Cook David W. Houseknecht Timothy R. Klett Richard M. Pollastro Christopher J. Schenk Timothy S. Collett 2008 The U.S. Geological Survey (USGS) recently completed the first assessment of the undiscovered technically recoverable gas-hydrate resources on the North Slope of Alaska. Using a geology-based assessment methodology, the USGS estimates that there are about 85 trillion cubic feet (TCF) of undiscovered, technically recoverable gas resources within gas hydrates in northern Alaska. application/pdf 10.3133/fs20083073 en U.S. Geological Survey Assessment of gas hydrate resources on the North Slope, Alaska, 2008 reports