Rather than moaning about too many cars on the road, the Ridesharing Institute says the real key to battling traffic congestion and pollution is filling empty passenger seats.
In a discouraging post mortem, it turns out neither the U.S. economy nor the environment really benefited from the 2009 “cash for clunkers” car-trading scheme.
In Washington, D.C., commuters have taken thousands of cars off highways via a homegrown rideshare system known as "slugging." Can the government create more slugs — without stepping on any?