If a casino is coming to the riverfront, publicly accessible open green space should be a priority, as well as considerations for wildlife habitat, environmental advocates say. And the buildings themselves should be held to the highest standards of sustainability and climate resiliency.

Earth Hour started as a simple “lights out” message to draw attention to climate change but has become a global call for environmental action.

A new study led by the Field Museum shows that a number of bird species are laying their eggs nearly a month earlier than 100 years ago, likely due to climate change.

The strain of highly pathogenic avian influenza circulating in the U.S., the first since 2016, doesn’t appear to pose a threat to humans, but is highly contagious among birds and often fatal.

If last week’s gas giveaway is any indication, people can expect to be idling in their cars for upwards of an hour or more Thursday as they wait their turn at the pump for Willie Wilson’s $1 million giveaway. 

The measure ratifies decisions made by Treasurer Melissa Conyears Ervin after her 2019 election to stop new investments in oil and gas firms while moving $70 million in investments from 225 fossil fuel companies. 

Equinoxes are always extra special in Chicago, thanks to the city’s grid. The sun rises due east and sets due west on the equinox, creating a phenomenon known as “Chicagohenge“ (in reference to Stonehenge), when the sun is strikingly framed by the city’s skyscrapers. The official start of astronomical spring takes place Sunday at 10:33 a.m.

Even with officials from several government entities keeping watch, someone dumped dye into the North Branch of the Chicago River, turning it bright St. Patrick's Day green over the weekend.

Robyn Detterline’s March Chicago Collision Bird Migration Madness tournament may be a product of her own imagination, but the stakes are very real for birds when it comes to navigating their way safely through Chicago.

Climate scientists at the University of Michigan looked at 15 different plant pollens in the United States and used computer simulations to calculate how much worse allergy season will likely get by the year 2100. It’s enough to make allergy sufferers even more red-eyed.

In recent years, educators have made extra efforts to encourage children to explore science, technology, engineering and mathematics fields. Especially girls. To help with this, the local nonprofit Girls 4 Science is offering a free program called Saturday STEM Academy for girls ages 10 to 18.

States that contribute to ground-level ozone, or smog, are required to submit plans ensuring that coal-fired power plants and other industrial sites don’t add significantly to air pollution in other states. 

Congress recently held a hearing on whether the U.S. should continue shifting back and forth between daylight saving and standard time. Guess what? We’re still springing forward Sunday.

Dyeing the Chicago River green on St. Patrick’s Day has been a tradition since the 1960s. But in 2020 and 2021, rogues extended the practice to a section of the North Branch, a bridge too far for environmentalists.

The weekend will kick off with subzero wind chills Friday night into Saturday morning, before milder temperatures move in Sunday, forecasters said.

Skunk cabbage is one of the first native plants to emerge from the frozen winter ground in the Chicago area. Its powerful aroma isn’t the only quirky thing about this plant.