This chapter identifies and describes major industrial sources of methane (CH4) emissions. For each source type examined, CH4 release points are identified and a detailed discussion of the factors affecting emissions is provided. A summary and discussion of available global and country-specific CH4 emissions estimates are also presented. The major emission sources examined include coal mining operations and natural gas production and distribution systems. However, a variety of minor industrial sources are also examined because their collective contributions to the global CH4 budget may be significant. Among the minor industrial sources examined here are: coke production facilities, chemical manufacturing operations, peat mining operations, light water nuclear reactors, fossil fuel combustion equipment (boilers and automobiles), geothermal electricity generation facilities, salt mining operations, residential refuse burning, and shale oil mining operations. (Copyright (c) Springer-Verlag 1993.)