[no subject]

http://www.epa.gov/oar/mercuryrule/basic.htmhttp://www.epa.gov/oar/mercuryrule/basic.htm

"Mercury emitted from coal-fired power plants comes from mercury in coal,
which is released when the coal is burned. While coal-fired power plants are
the largest remaining source of human-generated mercury emissions in the
United States, they contribute very little to the global mercury pool.
Recent estimates of annual total global mercury emissions from all sources
-- both natural and human-generated -- range from roughly 4,400 to 7,500
tons per year. Human-caused U.S. mercury emissions are estimated to account
for roughly 3 percent of the global total, and U.S. coal-fired power plants
are estimated to account for only about 1 percent."

BTW, existing law calls for a 70% reduction in mercury emissions from US
power plants over the next few years which means that mercury emissions from
US coal-fired power plants will be about 0.03% of the total.