Architects and landscape designers recognize the problem and have in recent years begun wrestling with how to bring some of the natural greenery of our parks and tree-lined streets into our reinforced-concrete interiors, and how to use plants to clean the air we breathe, both indoors and out.
因此，如何讓公園和行道樹上的自然綠意「走進」鋼筋水泥裡，用植物淨化室內外空氣品質，已成為近年建築景觀設計的重點之一。