| Jul 20, 2011
Metra appears to have found a way to dramatically clean up the air inside its stainless-steel cars, but spikes of lung- and heart-damaging diesel pollution will remain a lingering problem on the platforms at Chicago's major rail stations.
| Aug 6, 2011
Chicago's first round of testing for a toxic metal called hexavalent chromium found that levels in local drinking water are more than 11 times higher than a health standard California adopted last month.
But it could take years before anything is done...
| Aug 6, 2011
Trace amounts of sex hormones, prescription drugs, flame retardants and herbicides are being detected in treated drinking water pumped to more than 7 million people in Chicago and its suburbs.
In the latest round of testing prompted by a 2008 Tribune...
| Jan 22, 2012
Fed by a steady stream of coal barges, the aging power plants that loom over Chicago's Little Village and Pilsen neighborhoods are by far the city's largest industrial sources of climate change pollution.
No other polluter comes close to the 4.2...
| Feb 6, 2012
| 7:34 AM
Thousands of commuters continue to breathe high levels of lung-damaging diesel exhaust at Chicago's Union Station, in part because of nagging maintenance problems at the Old Post Office that straddles the southbound tracks.
Testing by Amtrak has...
| Feb 15, 2012
Children living next to driveways or parking lots coated with coal tar are exposed to significantly higher doses of cancer-causing chemicals than those living near untreated asphalt, according to a study that raises new questions about commonly used...
| Mar 1, 2012
Built during the early part of the last century to satisfy Chicago's growing demand for electricity, two of the nation's oldest coal-fired power plants will shut down amid concerns about lung-damaging air pollution and competition from cleaner, less-...
| Mar 2, 2012
Making stretches of the Chicago River and other local waterways safer for recreation won't require a tax increase and will cost dramatically less than officials ominously predicted less than a year ago, according to documents filed Thursday by the...
| Mar 3, 2010
| 4:32 PM
This morning, "my Tribune colleague Michael Hawthorne took readers on a tour through the conflicting claims on global warming. We ran a climate change questions and answers package along with it," writes James Janega at TribNation. Hawthorne underscores...
| Apr 30, 2009
Federal agents raided government offices in south suburban Crestwood on Wednesday, less than two weeks after a Tribune investigation revealed the village had secretly pumped drinking water from a polluted well for more than two decades.
Acting on a...
| Jan 27, 2009
A swig of soda or a bite of a candy bar might be sweet, but a new study suggests that food made with corn syrup also could be delivering tiny doses of toxic mercury.
For the first time, researchers say they have detected traces of the silvery metal in...