The rules would lower the threshold for ozone from 75 parts per billion to between 65 ppb and 70 ppb. They are likely to be opposed by industry groups as well as Republicans.
The companies misstated how efficient 1.2 million of its cars were. The Justice Department, which brought complaints under the Clean Air Act, called the settlement "unprecedented."
The building housing the Environmental Protection Agency got a new name on Wednesday: it's now the William Jefferson Clinton Federal Building. The former president tallied his administration's accomplishments at a renaming ceremony.
In 1971, the the EPA sent photographers around America to document the environmental state of the country. Forty years later, the agency is doing it again. Photographer Michael Philip Manheim talks about returning to some of the locations he photographed.