Humans are making Earth a broken and increasingly unlivable planet through climate change, biodiversity loss and pollution. So the world must make dramatic changes to society, economics and daily life, a new United Nations report says.

NASA prepares to land a rover on Mars designed specifically to detect signs of ancient life. Local astronomer and space exploration enthusiast Mark Hammergren tells us more about the mission.

Students from across Chicago voted on the name for the Shedd’s 5-month old Pacific white-sided dolphin calf.

If winter 2021 feels epic, that’s because it has been. According to the National Weather Service, it’s been 40 years since Chicago has seen so much snow in such a short span of time.

As Chicago digs out from yet another major snowfall, with accumulation piling on top of previous storm totals, the Department of Streets and Sanitation is activating its plan to relocate snow to pre-determined sites. Plows could shift to residential streets Tuesday evening, officials said. 

Snow dampens other sounds, but it makes plenty of noise itself, especially in colder temperatures. Here’s why. 

O’Hare Airport officially notched 7.5 inches of snow but some Chicago neighborhoods got socked with more than twice that amount in the past 24 hours. 

It’s been 10 years since the infamous Groundhog Day blizzard left hundreds of motorists stranded on Lake Shore Drive. As another major winter storm bears down on Chicago, officials are putting to use lessons learned from that debacle.

While lake effect snow will come and go through Tuesday, the storm system, approaching from the south, is expected to reach Chicago by mid-afternoon Monday, according to the National Weather Service. 

Chicago set a new record for the coldest Feb. 14 in history, with a high temperature of just 4 degrees recorded at O’Hare Airport on Sunday, according to the National Weather Service.

Valentine’s Day in the Chicago area will be a dangerously chilly affair, with all of northern Illinois under a wind chill advisory issued by the National Weather Service.

The community science project, held over four days every February, collects data that provides scientists with a long-term record of bird distribution across the globe, helping to identify trends that might be associated with urbanization or climate change.

Dirty snow absorbs more of the sun’s energy and melts faster. Here’s why that’s a problem. 

There’s a misperception that birds such as geese and ducks need help finding food when it snows. If they couldn’t cope with Chicago’s winters, they wouldn’t be here, experts say. 

With dangerous subzero wind chill temperatures forecast for the upcoming weekend, officials offered timely reminders of ways to stay safe in extreme cold. 

The landscape has been pretty bleak of late. Here to brighten our outlook: The Garfield Park Conservatory has announced its indoor gardens will reopen to the public at the end of February.