The plan, if finalized next year, would significantly reduce fuel economy requirements, which set rules on how far new vehicles need to travel on a gallon of gasoline, through the 2031 model year.

Prepare for overnight lows in the negative single digits and wind chills of -15° to -20°. Thursday will be the coldest, with daytime highs in the teens, the weather service said.

The weekend snowstorm set a new record for November.

High winds and the potential for significant snowfall are likely to affect travelers on the front and back ends of the Thanksgiving weekend.

Detectives are using all kinds of gizmos and gadgets to solve crimes these days, but they're overlooking the lowest of low-tech clues: moss. A Field Museum researcher wants to change that.

Chicagoans have been going gaga over a pair of snowy owls that have settled in at Montrose beach. Maybe a little too gaga.

The arctic visitors have drawn bird watchers from surrounding states.

Officials announced Wednesday that $25 million in funding had been secured to demolish Ogden Park’s existing fieldhouse and replace it with a new building.

The Chicago Fire has committed to enhanced bird protections for its proposed new stadium. Does this represent a tipping point for bird-friendly design in Chicago?

A stretch of Chicago’s southernmost lakefront long used as a toxic landfill is now one step closer to becoming parkland open to all.

Chicagoans — and folks across the country — were treated to a dazzling display of the aurora borealis (northern lights) Tuesday night and there could be an encore in the works Wednesday.

Lake effect snow is gradually moving out of the Chicago area Monday morning after the season’s first winter storm.

A winter storm warning is in effect late Sunday night into Monday morning with forecasters predicting intense snowfall at a rate of more than three inches an hour in the most intense bands, according to the National Weather Service.

The zoo is soliciting potential names for the chick, whose sex is still TBD, via its social media channels and will release the finalists next week as part of a naming contest.

Let’s hand it to the moon, it makes skywatching easy.

The scariest thing about Halloween is the number of pumpkins that wind up in landfills every year. Enter the pumpkin smash. Collected gourds will be taken to compost facilities.