Three years after they began installing bat houses along waterways in Cook County, conservationists are hoping the bats will start moving in this year.

The Chicago River is cleaner today than it has been in generations, but “cleaner” is a relative term. One local advocacy group wants the city to aim for a trash-free river.

A forecast of heavy rain, unseasonably warm temperatures and melting snow presents a flooding risk for Chicago. MWRD offers tips to prevent basement backups and reduce strain on local water systems. 

Like the city that grew around it, the Chicago River is constantly changing. Get a preview of “The Chicago River Tour with Geoffrey Baer.”

There are more soggy days ahead. Find out how you can help ease the burden on the Chicago River and reduce the risk of flooding.

An American eel caught by a 5-year-old angler last week is possibly the first such eel ever recorded in the Chicago River, according to the Illinois Department of Natural Resources.

Chicago’s sewer and deep tunnel system couldn’t handle this weekend’s rain, allowing untreated sewage and stormwater into Lake Michigan.

Cook County Board President Toni Preckwinkle and about a dozen other elected officials will take part in a fundraiser aimed at boosting efforts to improve the quality of the river’s water.

Dozens of mallards have been found dead over the past month in multiple locations along the Chicago River, marking what one expert says is the largest occurrence of birds dying in the river in decades.

Big changes are coming to the North Branch of the Chicago River. Why some are up in arms over the plan.

As more cruises and kayaks join commercial barges on the river, some tour boat operators are concerned about safety. Learn the “rules of the road” for Chicago waterways.

Plans for new office buildings, apartment complexes and hotels along the North Branch of the Chicago River are underway.

The Chicago River is a lot cleaner than it used to be. And after years of litigation, the Metropolitan Water Reclamation District and environmental groups have agreed to a settlement and will work together to make the river even cleaner. 

The decadeslong fight to clean up the Chicago River took a step forward last week with the resolution of two lawsuits targeting phosphorous discharge that has polluted waters from Chicago to the Gulf of Mexico.

Adventurous eaters concerned about Asian carp entering the Great Lakes will have a chance to devour the invasive fish at a special event held along the Chicago River next week.

A plan that aims to allow swimming in Chicago’s waterways in less than 15 years was unveiled Wednesday by the city and partnering nonprofits.