With nearly $300 million in federal funding on the chopping block, leaders from across the Great Lakes region will convene next month in Chicago to address lead poisoning, oil pipelines and other threats to the area’s waters.

A study co-authored by Northwestern University climate expert Daniel Horton outlines a framework for measuring the impact of global warming on extreme weather events. 

Studies estimate that more than 100 billion plastic bags are used annually in the U.S. But in Chicago, many shoppers have switched their habits since the start of the city’s tax on plastic and paper bags, a new study shows. 

About 100 East Chicago residents and activists rallied and marched Wednesday while EPA head Scott Pruitt visited the city's lead-contaminated neighborhoods.

The head of the Environmental Protection Agency told residents in East Chicago on Wednesday that the agency had no plans to close its Chicago office. 

A spill last week at a U.S. Steel site in Northwest Indiana released an unknown amount of a potentially carcinogenic chemical into a Lake Michigan tributary, prompting the closure of three beaches at Indiana Dunes National Lakeshore.

With an eye toward Earth Day, Shedd Aquarium has launched a campaign encouraging people to switch from single-use plastic straws to reusable or biodegradable alternatives.

In 2015, Chicago air pollution reached elevated levels for a total of 151 days, a new report shows, increasing the risk of premature death, asthma attacks and other negative health effects for city residents.

Mayor Rahm Emanuel announced Sunday a commitment to transition the city’s municipal buildings and operations to 100 percent clean and renewable energy by 2025.

A community group has drawn up a plan to guide redevelopment of a heavily industrialized area in Chicago.

A newly released report shows additional sources of manganese dust on Chicago’s Southeast Side, where residents were already dealing with exposure to manganese and other pollutants. 

The changing face of glaciers around the world is the topic of a new exhibition at the Museum of Science and Industry.

Cuts to the EPA’s budget would affect a disproportionate number of minority and low-income residents in Chicago, experts say. 

A new WTTW web series peeks into pockets of nature in cities across the country.

Chicago’s top public health official said her department will examine an area on the city’s Southeast Side that faces exposure to manganese dust.

Lake Michigan and other Great Lakes could see a substantial amount of federal funding dry up.