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The U.S. burns 900 million metric tons of coal per year. The combustion produces billions of tons of CO2, but also more than 100 million metric tons of coal ash , which includes nasty stuff like mercury and lead.
Read More »The U.S. burns 900 million metric tons of coal per year. The combustion produces billions of tons of CO2, but also more than 100 million metric tons of coal ash , which includes nasty stuff like mercury and lead.
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