Ever since it opened in 2023, the Chicago Park District’s new 17-acre headquarters in Brighton Park has been known as Park 596.

The Chicago Park District is undertaking an inventory of its trees — counting their numbers and recording their health — in order to develop a management plan.

The event will be held at the PAWS Chicago Pippen Fasseas Adoption Center, 1997 N. Clybourn Avenue, in Lincoln Park. The shelter is extending its adoption hours and adding additional appointments for the upcoming event.

The wave of early retirements, firings of probationary workers and other Trump administration incentives for federal employees to leave government service led to more than 560 departures from the NWS, according to a NOAA employee who requested anonymity for fear of retribution.

A 3.3 magnitude earthquake struck Illinois shortly before midnight Monday, with an epicenter roughly 75 miles southeast of Springfield.

As part of its commitment to conserve the endangered southern California sea otter, Shedd Aquarium is a partner in a groundbreaking surrogate mom program.

Sea Rocket, who mated with Imani in 2024, has landed at Montrose Beach. Blaze and Pepper, who raised three chicks last summer, are also back on a Waukegan beach.

Chicago was once a swamp. In some places, it still is. But will climate change undo wetland restoration efforts?

Amid economic hardship and social stigma, thousands of informal recyclers power Argentina’s waste system and fight for recognition, respect and survival.

In the streets of Buenos Aires, Argentina, waste pickers are treating trash like treasure. The so-called cartoneros provide vital recycling services while earning a livelihood for their families.

The community science program Plants of Concern is designed to keep Illinois’ rare plants from going extinct.

Bits and pieces of Halley’s Comet, which last swung by Earth in 1986, will be visible as meteors in upcoming days. The Aquarid meteor shower will peak in the pre-dawn hours of May 5 and 6.

A proposed change to the United States’ Endangered Species Act could threaten not only to reverse decades of progress but accelerate the pace of loss, experts said.

The latest tactic in Chicago's ongoing war against rats is to attack the problem at the source — with birth control instead of poison.

The Forest Preserve District of Cook County has mapped the largest specimen of each tree species identified in the preserves and has made it easier for people to find these “champions.”

Double-crested cormorants have been thrilling Chicagoans lucky enough to witness thousands of the birds streaming along the Lake Michigan shoreline — wave after wave, lasting for several minutes — as they migrate further north.