Stories by Patty Wetli

A downtown parade and rally are planned for Tuesday to celebrate Chicago’s newest championship sports team: the Chicago Sky.

Sunny days and cool nights are the key to brilliant fall foliage. If the weather cooperates, expect things to take a turn for the colorful as Chicago’s trees hit their peak within the next two weeks.

During Thursday’s City Council meeting, alderpeople introduced a resolution calling for the Department of Streets and Sanitation to reinstate treatment of the city’s remaining parkway ash trees — numbering close to 50,000 — and also develop a systematic program for removing and replacing infested trees.

The Chicago Department of Water Management is calling on the EPA to make protection of Lake Michigan from industrial pollution a priority after U.S. Steel’s Midwest Plant experienced two leaks in two weeks into a waterway that feeds into the region’s source of drinking water.

For the second time in two weeks, Indiana Dunes National Park has had to close its beaches due to an unknown substance leaking into the water along its Portage shoreline. 

Debris from houses, shops and offices had to go somewhere. The rubble was dumped off the lakefront east of Michigan Avenue, and if that sounds like the location of Grant Park, it is.

The recommended 2022 budget will keep the doors open and the lights on, but doesn’t make a dent in the district’s $64 million in unfunded maintenance, pension obligations or goal to acquire more land. For those resources, the district is pinning its hopes on an upcoming property tax referendum.

Conservationists are in a race against the clock to save a five-acre patch of rare Illinois prairie from being bulldozed as part of a 280-acre expansion of the Chicago Rockford International Airport's cargo operation.

Friends of Illinois Nature Preserves, founded in 2020 to rally support for the state’s protected natural areas, is now launching a major recruitment effort to grow its ranks and muster a corps of volunteers to steward the sites in a race against invasive species and climate change.

The 11-year-old tiger had received her first dose of a COVID-19 vaccine developed for animals. The zoo is now awaiting test results for other big cats that are exhibiting symptoms similar to the infected tiger’s.

Chicago scientist Heather Skeen studied the gut bacteria of the migratory Kirtland’s warbler and made a surprising discovery with potentially far-reaching implications.

One of North America’s most common native bumble bee species, the aptly named American bumble bee, is on the ropes. Among the threats to its survival: competition from honey bees.

The Environmental Protection Agency confirmed the “reddish-orange discharge” that poured into Lake Michigan on Sunday from a steel plant in Portage, Indiana, was caused by high levels of iron, and says there’s no indication of health risks for people who may come into direct contact with the water.

U.S. Steel is reporting that a “rusty colored” discharge that poured into Lake Michigan on Sunday from its plant in Portage, Indiana, was due to elevated iron levels.

Officials from the Indiana Department of Environmental Management are investigating a “rusty colored liquid” discharged from the U.S. Steel plant in Portage, spotted Sunday evening in the Burns Waterway.

It is the largest single-day volunteer effort in support of environmental stewardship. Here’s how to get involved in National Public Lands Day at Chicago area parks and preserves.

Capybaras, native to Central and South America, are the largest members of the rodent family, tipping the scales at 130 pounds. Three of them have just arrived at the Brookfield Zoo.

Proposals to list the properties on the National Register of Historic Places cleared a key committee hearing Wednesday and will come before the Commission on Chicago Landmarks in October. 

The National Weather Service is warning people to steer clear of parks, trails, piers and breakwaters Wednesday and Thursday, with waves as high as 18 feet and wind gusts up to 45 miles per hour in the forecast.

Two harbingers of autumn — the harvest moon and fall equinox — are occurring within days of each other this week, which will make for some interesting sunsets and moon rises. And keep an eye out for “Chicagohenge.”

Safety officials are reminding Chicagoans that even if it still feels like summer, the lakefront’s beaches are now closed for the season to swimming, with lifeguards no longer present along the shoreline. So far in 2021, 38 people have drowned in Lake Michigan.

When it returns next month, the free architecture festival will once again offer in-person, behind-the-scenes access to buildings normally off-limits to the public. Here’s an early look at some of the new sites taking part in the 2021 event.

A wetlands restoration project is underway at Powderhorn Lake Forest Preserve in the Calumet region, where construction of a human-made water control device will recreate a more natural system of drainage.

The creation of the Native and Pollinator Garden Registry means Chicago gardeners now have protection from overzealous ticket writers. And plants like milkweed can take their rightful place alongside other “flowers” instead of being mistaken for weeds.

Large numbers of monarch butterflies are making a pit stop at Midewin National Tallgrass Prairie during their annual fall migration. That’s just one of the ways to enjoy and explore nature this weekend.

Under the new law, restaurants will only provide single-use plastic utensils by request. Supporters called the ordinance an important first step toward waste reduction but opponents said it will do little to stem the plastic tsunami.