Sprawl peaked around 1990, but was down 9 percent by 2012, according to a study in the journal Proceedings of the National Academy of Sciences. This is potentially good news for rural and semi-rural areas which have been gobbled up by the relentless march of development. The Associated Press reports that study author Christopher Barrington-Leigh from Montreal's McGill University looked at a century of street construction in U.S. metro areas and found that new urban streets are more densely packed.
The five best sprawl-controlling counties? Travis County, Texas; Mecklenburg County, North Carolina; Alachua County, Florida; Iredell County, North Carolina; and Franklin County, Ohio. "It shows there is hope," said Barrington-Leigh, who notes that sprawl encourages driving which pumps more greenhouse gases into the atmo. "We would like to slam the breaks on bad development."