| Apr 17, 2015
| 5:50 PM
Gov. Larry Hogan is reconsidering his predecessor's attempt to make coal-fired power plants install costly new pollution controls, switch to cleaner-burning fuel or shut down.
Three months after yanking a clear-air rule issued by Democratic Gov....
| Apr 13, 2015
| 8:11 AM
GREENBELT NASA scientist George J. Huffman sometimes watches in awe as bands of greens and yellows and reds float across a map of the world on a 20-foot screen at Goddard Space Flight Center.
The technology he helped develop uses satellites to track...
| Apr 7, 2015
| 11:00 AM
Regarding your article "TV ad hits Hogan for blocking air pollution curbs" (April 2), the ad rightly criticizes the Hogan administration's decision to block regulations required by the EPA to bring Maryland into compliance with federal air quality...
| Apr 10, 2015
| 5:00 AM
Mayor Eric Garcetti released a sweeping plan this week that outlines his environmental and economic priorities and sets measurable goals in a wide range of areas, from cutting smog and reducing the city's reliance on imported water to adding bike-share...
| Feb 25, 2015
| 7:11 PM
A new study by California scientists has linked chronic exposure to microscopic air pollutants in vehicle exhaust to deaths from heart disease. The finding bolsters evidence that ultrafine particles, which are not regulated by state or federal...
| 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 23, 2015
| 12:24 PM
Too much pressure in a piece of equipment at Torrance's Exxon Mobil refinery resulted in Wednesday's large explosion that sent irritating ash, filled with fiberglass and glass wool, into surrounding neighborhoods.
The blast jolted nearby residents...
| 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...
| Mar 23, 2015
| 1:00 PM
Nine-year-old Lily Martin has been coughing for most of the last three weeks. From morning to evening and most of the night, it has been hack, hack, hack. She is pale and exhausted. Her mother, Sophie, is worried sick.
The child is not the only one...
| Mar 25, 2015
| 5:32 PM
A common pollutant in vehicle exhaust, power plant emissions and cigarette smoke can shrink white matter in fetal brains and cause developmental damage during the toddler years, a new study suggests.
In 40 children examined by researchers, prenatal...
| Mar 24, 2015
| 3:33 PM
The U.S. Supreme Court Wednesday will hear arguments in a crucial case about regulating mercury and other toxic air pollution coming from coal-fired power plants. At stake is a very dangerous precedent that industry profits are more important than...