greening

noun
1
the act of creating parks and other areas with trees and plants in a city
سرسبزسازی, سرسبزسازی شهری
2
the act of making somebody more aware of issues connected with the environment or making something appear friendly towards the environment
سبزسازی, سبزگرایی, محیط زیست‌دوستی
the greening of British politics