Thanks to a Calif. law implemented in 2008 requiring ocean-going ships to switch from high-sulfur bunker fuel to cleaner fuels within 24 miles of the coast, Bay Area air quality significantly improved by reducing deadly particulate emissions.
Oct 9, 2013 BAAQMD News Release
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.
Apr 8, 2013 The New York Times - Energy & Environment
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.
Mar 29, 2013 The Washington Post