January 24, 2017, 9am PST
Oklahoma Attorney General Scott Pruitt suggested that as administrator of the Environmental Protection Agency he might not allow California to set its own stricter motor vehicle emissions standards.
June 16, 2016, 7am PDT
The forced slow-and-go caused by speed humps may have the unintended consequences of increasing the release of the tiny particles that have proven harmful to health within a concentrated area.
September 18, 2013, 1pm PDT
As China's hazardous environment becomes a "potent political issue", the central government has released a detailed plan that aims to clean up the country's abysmal air pollution.
August 26, 2013, 1pm PDT
With evidence on the harmful health impacts of vehicle emissions increasing, the EPA will begin monitoring pollution levels adjacent to freeways in Los Angeles and more than 100 of America's biggest cities. Experts say the action is long overdue.
April 11, 2013, 7am PDT
Add cancer to the growing list of ailments being linked to childhood exposure to vehicle emissions, say researchers from UCLA, USC and UC Irvine.
April 8, 2013, 10am PDT
The EPA's newly proposed rules to reduce sulfur in gasoline may have the perverse effect of making alternative vehicles, that is, those that don't run on gasoline, less competitive with conventional vehicles and ensure that we remain addicted to oil.
The New York Times - Energy & Environment
March 29, 2013, 10am PDT
After 15 months of 'regulatory limbo,' a proposal to require lower-pollution vehicles and cleaner gasoline nationwide (matching a standard already in place in California) is being advanced by the Obama administration.
August 20, 2012, 8am PDT
A new study by NOAA scientists and colleagues shows a stunning reduction in vehicle-related air pollutants in the Los Angeles basin over the past several decades. Despite the gains, unhealthy air remains.