According to the latest report on climate change, we’re still not doing enough to curb greenhouse gas emissions. There’s a way forward, but action can’t wait, scientists say.

Artist Ben Miller uses a unique technique called fly cast painting. He’ll be demonstrating it Sunday on the Riverwalk as he creates a portrait of the Chicago River.

The city’s commitment of $6 million to the Englewood Nature Trail is part of a total of $15 million announced by the mayor to jump-start a number of “green infrastructure” projects throughout Chicago.

The Sun put on a spectacular show Wednesday, emitting a “significant solar flare,” according to NASA. Now scientists are bracing to see what the resulting space weather will have in store for Earth.

Brookfield Zoo is celebrating the arrival of an adorable baby porcupine. We had to know: How do mama porcupines give birth safely? 

Scientists say global emissions need to drop 45% by the end of the decade compared to 1990 levels. But recent data show they are going up, not down, in part due to rising energy demand and the expansion of fossil fuel use.

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.