| Mar 9, 2015
| 4:52 AM
Nearly 15 years after crews dug up and replaced contaminated soil from Cynthia Medina's frontyard, federal officials have placed dart-sized air quality samplers in her South Bay home. The tests will reveal whether dangerous vapors are seeping inside...
| Mar 2, 2015
| 11:35 AM
The hottest movie in China this weekend wasn’t “Fifty Shades of Grey” or Jackie Chan’s latest, “Dragon Blade.” Instead, a pointed and emotional environmental online documentary has swept the country by storm, putting...
| Mar 6, 2015
| 2:57 PM
Air quality officials imposed stricter emissions limits on two Los Angeles County battery recycling plants Friday, attempting to protect surrounding communities from lead pollution released by Exide Technologies in Vernon.
The rules, approved on an 11-...
| Jan 31, 2015
| 2:00 PM
High above the Big Sur coast, Ian Faloona is finding pollution on the edge of the continent, a place that should have some of the country's cleanest air.
From an astronomical observatory on Chews Ridge in the Santa Lucia Mountains, the UC Davis...
| Mar 5, 2015
| 7:00 AM
In Part 3 of our interview with Rep. John Culberson (R-Texas), we turn to climate change, which is surely the most politically contentious topic under his jurisdiction as chairman of the House Appropriations Committee's subcommittee on commerce, justice...
| Feb 23, 2015
Scientists have a handle on what happens to air pollution spewing from tailpipes and smokestacks in the summer when sunlight and moisture can quickly interact with and transform key pollutants.
They know far less about what happens to those pollutants...
| Feb 22, 2015
| 2:48 PM
A long-delayed trash-burning power plant in South Baltimore has hit a new snag, as a regional government group has backed away from its pledge to buy electricity from the controversial project.
The Baltimore Regional Cooperative Purchasing Committee ...
| Feb 20, 2015
| 11:32 AM
Earth's past, present and future come together here on the northern peninsula of Antarctica, the wildest, most desolate and mysterious of its continents.
Clues to answering humanity's most basic questions are locked in this continental freezer the...
| Feb 19, 2015
| 4:16 PM
Scribblings on the walls of buildings and dwellings are being targeted for expulsion by Emmaus Borough Council.
Council members discussed an ordinance Tuesday aimed at curtailing graffiti within the borough before the problem becomes widespread.
| Feb 13, 2015
| 9:00 AM
I want to thank reporter Meredith Cohn ("Poverty, race drive asthma rates more than city living," Feb 5) for informing The Sun's readers about the new Johns Hopkins research that found that asthma is not just an inner city problem and that high levels...
| Feb 17, 2015
| 8:25 PM
Dozens of ships backed up off the Los Angeles and Long Beach ports in recent days, unable to unload cargo because of a protracted labor dispute. Work resumed at the ports Tuesday, but the slowdown in shipping traffic raised concerns that emissions from...