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(Evan Garcia / Chicago Tonight)

Looking at the impact of a proposed funding cut to the program that aims to keep invasive species out of the Great Lakes.

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(Frank McNamara / Flickr)

Lake Michigan and other Great Lakes could see a substantial amount of federal funding dry up.

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In the depths of a Chicago winter – and especially when there's a winter heat wave – sometimes you just have to get outside. But what if you’re not one for skiing or skating? We decided to go fish.

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(Roman Boed / Flickr)

Geoffrey Baer dives into the history of Chicago’s water and answers viewer questions about ghostly paper images haunting a South Side neighborhood and memories of a space-themed park.

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Despite a spate of recent reports, the Illinois Department of Natural Resources says that reintroducing alligator gar into Illinois' waterways will not prevent Asian carp from reaching Lake Michigan.

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(Roman Boed / Flickr)

Proposed legislation could open the door to more invasive species in the Great Lakes, say environmentalists. But shippers say it puts a patchwork quilt of conflicting regulations under one federal agency that allows them to do business while still keeping invasive species out.

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This bighead carp was caught in the Illinois River, the principal tributary of the Mississippi River. There are no North American fish large enough to eat Asian carp, according to the Asian Carp Regional Coordinating Committee. (USGS)

A process similar to making soda water may be an effective strategy in warding off an Asian carp invasion that’s threatening the health of the Great Lakes, including Lake Michigan.

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(Photo by Ricardo Pinto. Copyright ACEA 2016)

The America's Cup hits freshwater for the first time as it comes to Chicago this weekend. Elizabeth Brackett takes us to Navy Pier where teams are preparing for the races.

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The new permanent location for the museum opens on Saturday. Chicago Tonight got a preview of the new space located on the Bubbly Creek branch of the Chicago River. 

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Can aerial gondolas proposed for tours along the Chicago River lift tourism business in the city? Crain's managing editor Ann Dwyer joins us to discuss this story and more.

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The Chicago River is far from America's cleanest waterway. But a few anglers are trying their luck as its ecosystem improves. Captain Tim Frey took us for a winter fishing trip on the river.

What happened to the puppet theater on Michigan Avenue?

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In this edition of Ask Geoffrey, our local history expert Geoffrey Baer revisits a Streeterville puppet show, examines underground architecture on the Blue Line and digs deep into the history of Montrose Beach.

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Heading to the beach? You might actually see less of it: Water levels in Lake Michigan are rising at a record pace. We’ll talk with an expert about what’s causing the rise, how it affects the lake’s ecosystem, and what it means to nearby property owners.

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Last weekend, the nonpartisan Council of Great Lakes Governors held a summit to discuss how to prevent a repeat of last year’s toxic algae bloom that left more than 400,000 without drinking water. We’ll talk with experts about the summit and the economic and technological advantages that Lake Michigan provides to Chicago. 

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A summit to discuss the protection and preservation of the Great Lakes meets in Chicago. The meeting comes in the wake of last month’s water crisis in Toledo. Elizabeth Brackett has the latest.

Toledo Water Issues Lead to Re-Test of Lake Michigan Water

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A toxic algae bloom in Lake Erie put Toledo's drinking water in jeopardy. Could the same thing happen to Lake Michigan and Chicago's water supply? Paris Schutz has the latest.