Daphnia, tiny crustaceans in Lake Mendota that graze on algae, and their good works are in danger. Each year their population is now crashing in the late summer as they are decimated by a voracious new predator called the spiny waterflea.
All lakes are not created equal. And in the Madison area’s Yahara chain, Lake Kegonsa is the redheaded steplake.
Efforts to clean up lakes Mendota, Monona, Kegonsa and Waubesa are employing conservation practices that originated in Dane County back in the 1970s — just on steroids.
“Developers are often demonized, but I have probably planted more trees than 99 percent of citizens and the city of Madison,” said Wall, the 2009 recipient of the Governor’s Award for Excellence in Energy Efficiency and a one-time Republican U.S. Senate candidate who lost to Ron Johnson. “There is nothing worse than a town filled with concrete.”
A Milwaukee scientist who has found sewage migrating from old pipes through soil and into the stormwater lines that drain to lakes or streams says the problem is likely to occur in Madison and cities nationwide.
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.
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.
How to spot them, what to do if you do, and signs of illness.
The Yahara watershed is crawling with scientists who keep trying new ways to clean up the lakes.
The Yahara lakes — Mendota, Monona, Wingra, Waubesa and Kegonsa — are no clearer than they were 30 years ago, despite intensive efforts to improve them.