The state had been prohibited from settings its own emissions targets for more than 20 years. Lawmakers are now expected to focus on an aspirational clean energy bill with the goal of moving Illinois to 100% clean energy by 2050.

July was the hottest month measured on Earth since records began in 1880, the latest in a long line of peaks that scientists say backs up predictions for man-made climate change.

Illinois residents experience roughly two days each year in which the heat index surpasses 105 degrees Fahreneit. Within roughly three decades, that number could rise to 26 days per year, according to a new report.

Meet Dr. Mika Tosca, a scientist who traded a job at NASA’s renowned Jet Propulsion Lab to teach climate science to art and design students in Chicago.

Near-record rainfall has left many farms and gardens underwater, but some area gardens – including our WTTW organic garden – appear to be thriving. Organic gardener Jeanne Nolan explains why.

Public officials and environmental advocates are speaking out against the Trump administration’s rollback of an Obama-era effort to shift the U.S. away from coal-fired power plants. 

The Trump administration on Wednesday completed one of its biggest rollbacks of environmental rules, replacing the landmark Obama-era Clean Power Plan with a replacement rule.

The Illinois General Assembly has voted to repeal a decades-old law that prohibited the state from implementing its own restrictions on greenhouse gas emissions.

There might be a new kind of meat cooking on the grill this weekend: alternative meat. But what is it? And why the craze?

Dozens of environmental activists from across the Midwest rallied Tuesday outside Chase Tower in the Loop to protest the financing of fossil fuel projects by the country’s largest bank.

Several hundred students ditched classes Friday for a march and rally downtown as part of the Youth Climate Strike, a global movement demanding action to address global warming.

The non-binding measure is being celebrated by environmental advocates, who note that Chicago is now the largest U.S. city to announce a timeline for obtaining all of its energy from renewable sources.

A first-of-its-kind report shows how climate change is threatening the Great Lakes, and how their ongoing transformation figures to impact the entire region.

The Clean Energy Jobs Act aims to move Illinois to 100 percent renewable energy by 2050 while modernizing the state’s transportation sector and creating thousands of new jobs.

Mayor Rahm Emanuel announces a plan for transitioning Chicago buildings to 100 percent renewable energy by 2035. But community advocates say the plan ignores existing environmental threats in some parts of the city.

The Chicago area’s wastewater treatment agency says it is ahead of schedule in its efforts to combat climate change.