A bighead carp, a type of Asian carp, 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. (Photo courtesy U.S. Geological Survey)

Efforts to increase demand for Asian carp as a food are aimed at buying time for development of a long-term solution to the threat posed by the invasive fish.

Goats and sheep on the job at MWRD's Calumet plant. (Metropolitan Water Reclamation District of Greater Chicago / Facebook)

A herd of 65 sheep and goats replaced more traditional mowing equipment this summer at MWRD’s Calumet Water Reclamation Plant, where the animals helped maintain the native prairie landscape. 

What’s so special about this fish? It’s all about the little yellow tag. (Metropolitan Water Reclamation District)

A largemouth bass fished from the Skokie River provided proof of the success of a 2018 dam removal on the Chicago River.

Keep wipes out of Chicago's sewer system. (Patty Wetli / WTTW)

The Metropolitan Water Reclamation District of Greater Chicago has seen a rise in disinfectant wipes stuck to filtering screens at its water reclamation plants, and it now has some advice for residents.

The MWRD labeled this image “how not to salt.” (Facebook / Metropolitan Water Reclamation District of Greater Chicago)

Overuse of salt as a de-icer can contaminate waterways and harm wildlife. Learn how much is too much – and what eco-friendly options exist.

MWRD says that new primary settling tanks at its Stickney Water Reclamation Plant are lowering its carbon footprint by trapping methane emissions and generating energy that can be returned to the plant. (Courtesy Metropolitan Water Reclamation District of Greater Chicago)

The Chicago area’s wastewater treatment agency says it is ahead of schedule in its efforts to combat climate change. 

Ice covers the Chicago River on Wednesday, Jan. 30, 2019. A deadly arctic deep freeze enveloped the Midwest with record-breaking temperatures triggering widespread closures of schools and businesses. (AP Photo / Teresa Crawford)

Melting snow and potential rain are likely to cause flooding as we head into a weekend warm-up following a record-setting Arctic blast.

Newly elected MWRD President Kari Steele (center) with Finance Chairman Frank Avila and Vice President Barbara McGowan (Metropolitan Water Reclamation District of Greater Chicago)

New MWRD President Kari Steele is the only chemist on the organization’s nine-member board. She was re-elected in November to a second term as commissioner. 

Project Manager Justin Rossman of Site Design Group explains the highlights of Ashe Elementary School’s planned garden to Dean Alonistiotis, aide to MWRD Commissioner Kimberly Du Buclet. (Courtesy Metropolitan Water Reclamation District of Greater Chicago)

New outdoor spaces at a handful of Chicago elementary schools will provide safe play areas for kids in low-income neighborhoods while also mitigating flooding risks, according to program organizers. 

MWRD Executive Director Brian A. Perkovich (Courtesy Metropolitan Water Reclamation District of Greater Chicago)

The appointment of Brian Perkovich as head of the Metropolitan Water Reclamation District of Greater Chicago comes five months after the abrupt – and unexplained – resignation of David St. Pierre. 

Newly elected Democrats Scott Britton, left, and Kevin B. Morrison appear on “Chicago Tonight.”

Scott Britton, Kevin B. Morrison and Cam Davis. Meet some of the Cook County Democrats who rode Illinois’ “blue wave” to unseat Republican incumbents on the county board.

The Lathrop Riverfront Group holds a kick-off paddle along the Chicago River. (Courtesy Metropolitan Water Reclamation District of Greater Chicago)

The Lathrop Riverfront Group was formed to promote the section of riverfront near the Julia C. Lathrop Homes, a Chicago Housing Authority project that is being redeveloped into a mixed-income riverfront community. 

Learn about the candidates running for Metropolitan Water Reclamation District commissioner (two-year and six-year terms) in the Nov. 6 election as part of WTTW’s 2018 Voters’ Guide to the General Election.

Learn about the candidates running for Cook County commissioner in the Nov. 6 election as part of WTTW’s 2018 Voters’ Guide to the General Election.

Tom Dart

“The Sheriff’s Office has won praise for progressive reforms to improve and maintain the safety and security of all those housed and employed at the Cook County Jail,” says Tom Dart. Learn more about this candidate.

Geoffrey Cubbage

“We know our water isn’t as clean as it should be – only two of our seven wastewater treatment plants even use an industry-standard third-stage disinfectant treatment,” says Geoffrey Cubbage. Learn more about this candidate.