Turning blight into bloom.
D000397:Air Pollution / Q000517:prevention & control; D002947:Cities / Q000706:statistics & numerical data; D002958:City Planning / Q000379:methods / Q000639:trends*; D003247:Conservation of Natural Resources / Q000379:methods / Q000639:trends; D004463:Ecology / Q000379:methods / Q000639:trends*; D005160:Facility Design and Construction / Q000379:methods; D017752:Greenhouse Effect; D006801:Humans; D038622:Internationality; D014507:Urbanization / Q000639:trends