The leading source of mercury pollution is coal-fired power plants (roughly 70,000 pounds of mercury per year). One of the ways to decrease that number is, of course, to conserve energy as much as possible. Another thing you can do is purchase wind credits from an American wind farm; that energy is directed to your grid, reducing the amount of electricity used from other more polluting sources like coal-fired power plants to heat your home and run your appliances.

Here is a link for more information . . . you can have monthly deductions from your bill to pay for the wind credits:

http://www.nativeenergy.com/index.html