Al Gore links climate change to problems in Great Lakes

The vice president turned environmental activist says severe storms linked to climate changes are causing wastewater plants to dump sewage in the lakes, which causes algae growth.
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The vice president turned environmental activist says severe storms linked to climate changes are causing wastewater plants to dump sewage in the lakes, which causes algae growth.

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Feds: Climate change only 'minor factor' in March heatwave

A meteorologist with the NOAA says the warmth was a "freak event" caused by warm air blowing north from the Gulf of Mexico. But some outside scientists say climate change is indeed behind weather extremes like the March heatwave and that we should expect more.

MPCA approves plan to dump taconite in lake to control weeds

The Minnesota Pollution Control Agency signed off on a plan to dump more than 13 tons of taconite concentrate into Rush Lake. The lake association wants to reduce the level of phosphorus, which leads to growth of algae and invasive pondweed. It hopes the taconite experiment will do the trick. Audubon Minnesota had argued for an environmental review.

Scientists say winter bug could offer clues to climate change

Researchers from the University of Minnesota are studying a cold-hardy bug that serves as a filling meal for trout during the winter season. The insect has little tolerance for warmth, and scientists tell the Star Tribune that even a small fluctuation in temperature could cause changes in the ecosystem.

Duluth considers adapting stormwater system for a wetter climate

Last week's historic flash flooding caused "extensive damage" to Duluth's 400-mile network of sewers, culverts, ditches and basins. The Star Tribune reports the northern Minnesota city is among the first wave of communities looking into how it might redesign the system to accommodate increasing precipitation -- which is a symptom of ongoing climate warming.