Ozone pollution has worsened at some national parks posing health risks to visitors but also leading to improved visibility.
"Ozone is a colorless, odorless pollutant, making it possible for visibility to improve sharply in Yellowstone National Park, for instance, even as ozone levels climb steadily. Brown haze and other visible smog has decreased in many parks because of a 1999 Environmental Protection Agency edict...which has led to stiffer controls on industries that produce visible particulate pollution.
...huge increases in oil and gas drilling in interior western states â€" along with emissions from coal-fired power plants, cars and other sources â€" were causing ozone to drift across some of the nation's most famous parks."
FULL STORY: On a Clear Day, You Can't See the Pollution
Seattle Legalizes Co-Living
A new state law requires all Washington cities to allow co-living facilities in areas zoned for multifamily housing.
Central Florida’s SunRail Plans Major Expansion
The expanded train line will connect more destinations to the international airport and other important destinations.
Las Vegas Golf Course to Become Over 1,000 Units of Affordable Housing
The project is part of an initiative to build affordable housing on shuttered golf courses.
Cities and States Taking Action to Limit Rent-Setting AI
Federal prosecutors are charging a software company with using algorithms to artificially inflate rents.
BART to Raise Fares in January
The transit agency says it needs more state and federal support to meet its operating costs and avoid a growing budget gap.
Montreal Bike Share Breaks Ridership Record With 13 Million Rides
The Bixi system introduced a winter pilot project last year, leading to a rise in winter cycling.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Los Alamos County
City of Culver City
Skagit Transit
American Planning Association, Sustainable Communities Division
HUDs Office of Policy Development and Research
HUDs Office of Policy Development and Research
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners