| Nov 26, 2014
| 4:50 PM
The Obama administration's long-awaited announcement Wednesday that it wants to toughen limits on smog-forming ozone immediately generated questions about whether the plan can survive the current political climate and how much its cost will factor in...
| Nov 20, 2014
| 5:13 PM
The antimicrobial agent triclosan -- widely found in soaps, toothpastes, detergents and other cleansers beloved by germophobes, may promote scarring of the liver and the growth of cancerous liver tumors, says a new study.
That finding -- in male mice...
| Nov 25, 2014
| 7:13 PM
After years of inaction, the Obama administration is expected to propose tougher limits on smog Wednesday, according to people with knowledge of the rule-making effort. The new rule would be a major victory for public health groups, but it is sure to...
| Sep 10, 2014
| 5:00 AM
How does a normal day in Beijing compare with one in Los Angeles?
The answer, it turns out, is both simple and complex.
Los Angeles' skies are among the most foul in the United States: In the American Lung Assn.'s 2014 national State of the Air...
| Oct 1, 2014
| 3:43 PM
When it comes to cutting carbon, what's old, it seems, is new again.
Exelon Corp. executives are using terms like "cap and trade" and "carbon tax" in describing how they think Illinois should lower its carbon footprint in anticipation of the...
| Sep 1, 2014
| 9:00 PM
American farmers apply more than 1 billion pounds of pesticides a year to their fields to kill weeds and damaging insects. But collateral damage includes farmworkers; more than 10,000 a year suffer acute pesticide poisoning. Now the U.S. Environmental...
| Aug 29, 2014
| 9:25 PM
The U.S. Environmental Protection Agency staff said Friday that the nation should tighten smog rules significantly, a step that would improve air quality in California but force costly new requirements on government and industry.
The EPA staff...
| Aug 4, 2014
| 5:51 PM
One flame retardant is linked to cancer and was voluntarily taken out of children's pajamas in the 1970s after researchers discovered it mutated DNA.
The other was touted as an eco-friendly chemical that would neither escape from household furniture nor...
| Sep 18, 2014
| 6:24 PM
Hopes for redevelopment of the former Sparrows Point steel mill in Baltimore County — and the promise of new jobs — took two giant strides forward Thursday as the land was sold to a new owner who also reached agreement with state and federal...
| Jun 27, 2014
| 5:39 PM
From the sidewalk in front of her apartment in Cicero, Yolanda Foster can see long freight trains and an endless line of trucks rumbling day and night through the sprawling rail yard across the street.
What she can't see are the clouds of microscopic...
| Apr 29, 2014
| 8:06 PM
— The Supreme Court handed the Obama administration a significant victory on an environmental issue, with a 6-2 decision that upholds a regulation requiring Midwestern states with coal-fired power plants to reduce harmful emissions that drift to the...