Clean-air taxi rules in New York City increased cabs' fuel efficiency and reduced air pollution, a new study says.
Legislation introduced in 2006 required at least 9% of new medallions, or licenses, for yellow cabs be set aside for hybrid or compressed natural gas vehicles. It also encouraged companies to purchase low-emission taxis.
The National Safety Council has a sobering forecast for this Fourth of July.
It estimates that 18,600 people could be seriously injured on U.S. roads and 164 could be killed -- nearly 4 percent more than the number of deaths (157) that occurred in 2012, the last time July 4 fell on Wednesday.
"Independence Day should be about spending time with loved ones and watching firewo...