How California’s war on smog and its ambitious car pollution rules made everyone’s air cleaner

Cars on the road today are 99% cleaner than they were in 1970. Air quality in the United States is much, much better as a ...
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10 cars that cause the most pollution

Cars are among the greatest air pollution problems in America. According to the EPA, “Greenhouse gas (GHG) emissions from transportation account for about 28 percent of total U.S. greenhouse gas ...

Smoglandia: Smog checks, diamond lanes and leaf blower bans work, but a dark cloud comes from D.C.

Smoglandia: SoCal adopts smog checks, diamond lanes and leaf blower bans to curb smog ...
Opinion

To protect public health, California must embrace clean transportation | Opinion

"Diesel pollution is linked to asthma, heart disease, lung cancer, premature death and harm to children's developing lungs and brains." ...