Melting glaciers, deadly floods in Germany, record high summer temperatures in generally mild Oregon, more urgent pleas for help from Pacific island nations. With growing urgency, the effects of climate change were felt around the world in 2021.

The National Weather Service on Tuesday said that as of 12:10 p.m., one-tenth of an inch of snow had been recorded at O’Hare Airport — Chicago’s official weather site — making the first measurable snowfall in 287 days.

The National Weather Service is forecasting a "burst of wet snow" on Tuesday and a chance of light snow on Wednesday, which could bring Chicago's snow-free streak to an end.

Did you know wrapping paper isn’t recyclable in Chicago? Read on for more tips on how to deal with post-holiday waste.

For an animal immortalized in literature, song and film, the reindeer has done a remarkable job of, pardon the pun, flying under the radar.

The highly anticipated launch of the James Webb Space Telescope has been delayed multiple times.

Marginalized people often suffer the most harm from unintended consequences of new technologies, according to researcher Breigha Adeyemo who shares ways to make them more inclusive. 

NASA prepares to launch the most powerful space telescope ever. Local astronomers share some up-close details. 

Celebrate the winter solstice Tuesday at a solar gazing event on the 606 Bloomingdale Trail, which boasts a solstice “notch” to frame sunsets.

At least 45 tornadoes have been preliminarily confirmed in the Dec. 15 storms that crossed the Great Plains and Midwest amid unseasonably warm temperatures.

Chicago has never gone this late in the year without a measurable snowfall, and there's no sign of the white stuff in sight.

On Friday, the Greater Rockford Airport Authority filed a motion in U.S. District Court to dismiss a lawsuit blocking the airport’s planned expansion of its cargo operations, which would destroy a rare five-acre high-quality remnant prairie in the process.

Visitors to the Garfield Park Conservatory have a rare and exciting opportunity to witness a plant in its spectacular death bloom as an agave prepares to flower for its first and last time.

Wednesday saw record high temperatures across the region, wind gusts above 60 miles per hour and even the smell of smoke, which rode in on winds all the way from brush fires in Kansas.

Great Lakes governors are asking the federal government to fund costs of the Brandon Road Lock and Dam project on the Des Plaines River, designed to block the incursion of invasive carp into the lakes.

A 140-foot-tall transparent structure that’s brightly illuminated 24/7, located across the street from Harms Woods nature preserve, along a key migratory greenway, is a triple threat to birds, environmentalists say.