The Yahara lakes — Mendota, Monona, Wingra, Waubesa and Kegonsa — are no clearer than they were 30 years ago, despite intensive efforts to improve them.
The Yahara watershed is crawling with scientists who keep trying new ways to clean up the lakes.
How to spot them, what to do if you do, and signs of illness.
Since 2001, manure digesters have been popping up across the state. Wisconsin now has 34, the most in the nation, with two more scheduled to begin operating by 2015. In all these digesters, bacteria eat biomass like manure, food scraps or whey and emit energy in the form of methane gas.
The greenhouse and its veggies are one example of a new cottage industry popping up across the country to capitalize on the waste energy, methane gas and the nutrient-rich solids that are emitted from a digester.