Environment
Climate change causes ‘roller coaster’ mercury levels in Wisconsin fish
|
Researchers find that climate change-caused variations in Wisconsin lake levels have begun reversing recent gains in controlling environmental mercury.
Bureau of Science Services
Gov. Scott Walker’s science cuts may hinder efforts to halt walleye decline
|
Wisconsin’s walleye have been in decline for as long as scientists have been collecting solid data, about a quarter-century. They aren’t as plentiful, and they’re growing more slowly. Now the state Department of Natural Resources’ ability to research and reverse that decline could be at risk, with Gov. Scott Walker’s proposed cuts of DNR scientists.
Dioxins
Tainted fish
|
The four groups of chemicals that trigger consumption advisories — PCBs, mercury, dioxins and PFOS (perfluorooctane sulfate) — have all been associated with endocrine disruption.
Endocrine disruptors
Minnow reveals wastewater’s toxic effects
|
Males exposed to chemicals managed to mate if other males were not around. But if they had to compete with the control males, however, they “suffered nearly total reproductive failure”: They had no game.
Endocrine disruptors
Concerns grow about hormone-disrupting chemicals in Wisconsin water
|
Endocrine disruptors have been called a “global threat” to people and wildlife, but Wisconsin is lagging behind Minnesota in testing its waters for them.
Fish
Data for fishermen: How long until the fish are safe?
|
In the best-case scenario, we’ll be able to eat all the Lake Michigan lake trout we want without worrying about getting cancer from the PCBs — in another 20 years. Less optimistically, we might have to wait until 2046.