SEATTLE -- The Green Sports Alliance (GSA) has gone global and is preparing to take the next step: attracting more non-sports businesses and groups.
Four years ago a handful of Northwest teams formed the GSA with the goal of creating the nation's greenest sports stadiums and arenas.
Organizers say the Portland Trailblazers saved millions by making a $600,000 investment in LED lighting and other upgrades.
Safeco and CenturyLink Field also made upgrades and kicked off recycling and composting programs that have dramatically reduced their landfill waste.
Soon other stadiums joined. Philadelphia's football stadium is now producing as much as energy through wind, solar and other methods as it uses.
Newly appointed chief operating officer Justin Zeulner said there are now 300 professional and amateur sports members from 20 leagues and several countries, and they keep growing.
He said people who enjoy sports have long embraced social change. A recent survey found 81 percent of sports fans said they care about the environment.
Zeulner said now non-sports companies want to join and compete in efforts to green up their organizations.