Contributed by Jackie Hai:

City Councilor and mayoral candidate Sam Yoon has proposed new legislation that would give tax incentives for Boston property owners to build green roofs.

WBUR reports:
"Rooftop gardens are considered to help air quality, lower energy costs and cool down cities. However, they’re costly to install, ranging from $7 to $25 per square foot. Yoon’s legislation would give building owners a reduction of $5 per square foot on their property taxes."