In the first Biden administration rule aimed at combating climate change, the Environmental Protection Agency is proposing to phase down production and use of hydrofluorocarbons, highly potent greenhouse gases commonly used in refrigerators and air conditioners.

SpaceX safely returned four astronauts from the International Space Station on Sunday, making the first U.S. crew splashdown in darkness since the Apollo 8 moonshot.

Clover was once commonly included in lawn seed mixes, but then gained a reputation as a weed. It’s time, horticulturalists say, to revisit clover’s environmental benefits.

Between 2010 and 2020, Chicago’s canopy cover decreased from 19% to 16%, largely due to the loss of mature ash trees, according to the 2020 tree census spearheaded by the Morton Arboretum. 

Working with specimens in the Field Museum’s collections, researchers from Loyola University Chicago found microplastics in fish dating back to the 1950s. “Plastic is everywhere,” the scientists said. 

From Friday through Monday, hundreds of cities from around the globe will be competing in this annual challenge to record the most nature observations. Can Chicago improve on its middle-of-the-pack results from 2020? 

Across America, people of color are exposed to more air pollution than whites from industry, vehicles, construction and many other sources, a new study has found.

Huge swaths of the Midwest were drained to make way for agriculture. UIC’s Kimberly Van Meter is harnessing NASA imagery to hunt for the region’s lost wetlands, the first step toward strategic restoration.

Chicago went from tank-top to sweatshirt weather in a matter of minutes on Tuesday in one of the wildest temperature swings the city has ever seen.

Marine scientists say they have found what they believe to be as many as 25,000 barrels that possibly contain DDT dumped off the Southern California coast near Catalina Island, where a massive underwater toxic waste site dating back to World War II has long been suspected.

After an anxious 24 hours, bird watchers can relax: Monty, one half of Chicago’s beloved piping plover lovebird duo, has arrived at Montrose Beach Dunes, and been reunited with his mate, Rose.

Rose, one half of Chicago’s beloved piping plover duo, was spotted Sunday at Montrose Beach Dunes. The hope is that Monty, winging his way from Texas, won’t be far behind. 

The International Space Station’s population swelled to 11 on Saturday with the jubilant arrival of SpaceX’s third crew capsule in less than a year. It’s the biggest crowd up there in more than a decade.

Nearly 90% of Chicago’s parks are managed without the use of weed control chemicals. We’ve got tips for how to follow suit.

The repair, expected to take six weeks, will consist of piling 1,500 tons of rocks along the shoreline and building a concrete wall to guard against further erosion.

The Obama Foundation is sharing new details related to its landscape plan for the proposed Obama Presidential Center, which it says will “create a model of sustainability.”