In June, it finalized requirements under its national mandatory greenhouse gas reporting program for “underground mines, industrial wastewater treatment systems, industrial waste landfills, and magnesium production facilities.” The target this time is methane, among the most minor elements of the Earth’s atmosphere one can identify. In 1998, the amount of methane in the Earth's atmosphere was estimated to be 1,745 parts per billion. Swamps and bogs around the globe naturally produce methane and always have. Identifying it as a “greenhouse gas” is part of the global warming hoax that claims methane and carbon dioxide are causing the Earth to heat up. Apparently no one has told the EPA that the Earth has been cooling for the past decade.