Living walls vs polluted cities

"A new report says that green building envelopes, often dismissed as architectural window dressing, are slashing by 20 percent street level air pollution and muffling traffic noise by up to 10 decibels in certain situations."

"In Cities Alive: Green Building Envelope, research firm Arup calls on developers and planners to implement strategic approaches toward “greening” and to harness the benefits of living walls and green roofs to help create a cleaner and healthier environment for all, reports Construction Inquirer."

from: http://www.childrenandnature.org/2016/11/25/study-backs-spread-of-living-walls-for-polluted-cities/