UW-Madison's Charter Street plant emits more than 250,000 metric tons of greenhouse gases per year.
The Environmental Protection Agency recently unveiled a new online map and database, allowing people to find the country's largest emitters of greenhouse gases.
In Madison, the biggest polluters are, unsurprisingly, power plants. The biggest polluter in the city is UW-Madison's Charter Street plant, which releases more than 250,000 metric tons of greenhouse gases -- which includes carbon dioxide, methane and nitrous oxide -- into the air each year.
Other high level polluters in Madison include the West Campus Cogeneration Facility on Walnut Street (78,000 metric tons), the Dane County Landfill on US Highway 12 (75,000 metric tons) the UW-Madison Walnut Street plant (47,000 metric tons), the Blount Street plant (40,000 metric tons), Kraft Foods on Mayer Avenue, (36,000 metric tons), and Mendota Mental Health Institute (29,000 metric tons).
Overall in the state, power plants pumped 46 million metric tons of greenhouse gases into the atmosphere. Pulp and paper plants contributed almost 5 million metric tons.
The biggest culprit in the state was Pleasant Prairie power plant near Milwaukee, which dumps more than 8.1 million metric tons of greenhouse gases into the atmosphere each year.