The Los Angeles County Metropolitan Transportation Authority Board of Directors unanimously approved a motion on April 28 that instructs the agency to develop a policy to protect existing trees and plant more trees as transportation projects are developed.

“Our communities are facing increasing average temperatures, more air pollution and other serious environmental challenges. A Metro Tree Policy will mean cleaner air, more shade for pedestrians and cyclists and people taking transit, and more walkable, livable and beautiful neighborhoods,” said Metro board member and Los Angeles County Supervisor Janice Hahn.

Trees provide multiple benefits, cooling streets by between 2-4 degrees Fahrenheit while improving air quality and reducing stormwater runoff.

“Neighborhoods that lack green infrastructure are more often lower-income and communities of color, with higher transit ridership,” Hahn added. “Those communities stand to benefit the most from this policy. I’m thankful to my colleagues for their support and look forward to delivering cleaner, healthier air for the residents of L.A. County.”

The motion instructs Metro to present a plan for the board’s approval by August.