Intense rains fell Sunday morning at a rate rarely seen in Chicago, overwhelming the city’s stormwater system and flooding streets, viaducts and basements.

What's that you say? Cicadas have been uncommonly loud all day long? There's likely a simple explanation for the sustained volume.

Like any good host, the Forest Preserve District of Cook County has done its best to make sure the guests feel welcome.

The swelling waters of the Indus, a major river in this part of the world, have wreaked havoc as heavy rains and massive flooding unleashed devastation across much of Pakistan. At least 1,343 people have been killed and millions have lost their homes, with many experts blaming the unusually heavy monsoon rains on climate change.

Morton Arboretum conducted an international search to select a successor to retiring CEO and president Gerard Donnelly, and landed on a familiar face, close to home.

The weather may still feel like summer, but when it comes to Chicago's beaches, the season is officially over.

In a city where air pollution is an environmental justice issue, local grassroots groups are self-installing, funding and monitoring air pollution monitors to understand the specific threats they face and demand change.

Jorge Garcia wasn’t always a bird paparazzo – in fact, he’s only been at it for a couple of years, after a gear upgrade for his job as a technologist took an unexpected turn. The fledgling interest soon hatched into a full-blown hobby.

A team of researchers, led by Morton Arboretum, spent the better part of the past five years creating the first-ever standardized checklist and threat assessment of the nearly 900 species native U.S. trees. Their work provides the foundation on which to build awareness, advocacy and future conservation efforts.

The Chicago Park District is joining a national community science project designed to raise awareness of all the bees, butterflies, beetles, moths and wasps that rely on urban green spaces for food and shelter.

The Duchossois family — whose late patriarch, Richard Duchossois, purchased Arlington Park in 1983 — has announced the sale of its 246.5-acre Hill ‘N Dale Farm South property to Barrington-based Citizens for Conservation, ensuring the land’s protection as open space in perpetuity.

Zombie or doomed ice is ice that is still attached to thicker areas of ice, but is no longer getting fed by those larger glaciers. Meanwhile the doomed ice is melting from climate change, said study co-author William Colgan, a glaciologist at the Geological Survey of Denmark and Greenland.

The emergency waiver was granted Saturday for Indiana, Illinois, Michigan and Wisconsin, EPA Administrator Michael Regan said. In a letter to state officials, Regan said the agency determined the waiver is necessary “to minimize or prevent disruption of an adequate supply of gasoline to consumers.”

It’s the time of year when some of the tallest native plants are in bloom, coming into their own just as most other flora are on the wane. And by tall, we mean they could easily dunk on LeBron James.

The survey found that 11% of young adults reported using marijuana on a daily basis in 2021 and 43% had used it in the past year. About 8% of young adults reported using substances such as LSD, PCP and psychedelic mushrooms in the past year, up from just 3% in 2011.

The decision by the California Air Resources Board came two years after Gov. Gavin Newsom first directed regulators to consider such a policy. If the goal is reached, California would cut emissions from cars in half by 2040.