Volkswagen has gained approval from air regulators of the final modification plan for the remaining vehicles that contain software designed to defeat emissions tests, the California Air Resources Board has announced.
Cost estimates for meeting MPG and pollution standards are overstated by as much as 40 percent, according to a study by the International Council on Clean Transportation (ICCT).
The mayors of Paris, Mexico City, Madrid, and Athens have pledged to ban diesel vehicles from their cities by 2025 in an effort to improve air quality.
The majority of vehicle pollution is produced by a small number of older or "badly-tuned" cars and trucks, according to a study by researchers at the University of Toronto in Canada.
California cities rank at the top of the list of the areas with the worst air pollution, according to the American Lung Association's "State of the Air" report for 2015.
Public fleets serving disadvantaged communities in California can apply for up to $15,000 in rebates for each green light-duty vehicle purchased. Plug-in hybrids, battery or range-extended electric vehicles, and fuel-cell vehicles are eligible.
The Los Angeles basin that also includes Long Beach again registered the highest level of air pollution among the largest urban areas in the U.S., according to the American Lung Association's (ALA) 2014 ranking.
China has announced that it will increase its subsidies for electric vehicles as part of scheme to minimize air pollution, according to a report by Bloomberg.com.
The government will allot a higher proportion of license plates every year to buyers of vehicles that need lower amounts of gasoline or use alternative energy. This could benefit electric automakers such as BYD Co Ltd.
Public agencies, private businesses, and non-profit organizations in Yolo County, California have been awarded funds to retrofit and replace vehicles as well as educate community members in an effort to reduce local air pollution.