Sports stadiums and arenas showcase sustainability features

The newly opened $1.6 billion Mercedes-Benz Stadium in Atlanta earned LEED Platinum certification and is one of the latest sports venues to showcase sustainability.

Earning 88 out of a potential 110 points, the facility is the first sports arena to achieve the Platinum rating. Stadiums and arenas have become showcases for green design, with owners finding that they are cheaper to operate and generate positive publicity for their environmental responsibility.

The Golden 1 Center in Sacramento, home of the Sacramento Kings N.B.A. franchise, became the first LEED Platinum arena when it opened in 2016. Dozens of sports arenas and stadiums around the globe have installed solar panels, LED lighting and scoreboards, energy efficient air-conditioning and dehumidifiers, and composters.

Many use a translucent coating on windows to reduce solar heat gain. Mercedes-Benz Stadium, home to Atlanta Falcons of the N.F.L. and a Major League Soccer team, holds up to 680,000 gallons of rainwater collected from the roof.

New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.