Paris is stepping up efforts to curb air pollution by announcing that cars will be banned from the streets one day a month. more
The exemption bill would allow California's classic-car owners to pay a $200 fee to avoid the state's smog test. more
China now has 300 million licensed drivers, which is still only one out of three Chinese adults. more
China wants 5 million green vehicles on roads by 2020. more
At least 30 percent of cars bought by the Chinese government must use alternative energy by 2016, according to a new mandate. more
London has higher concentrations of the pollutant nitrogen dioxide than even Beijing. more
High temperatures and low winds will likely increase smog levels in the Bay Area possibly through Thursday. more
The American Lung Association's annual report found that pollution levels are down overall but 22 populous metropolitan areas have seen increased amounts of ozone. more