Wu points out that there isn't enough green space in the city, and that there is a pitiful lack of trees. Overcrowded Taipei has an average of 15 trees for every person, whereas in Kaohsiung there are only two trees for every person.
吳錦發指出，高雄綠地不足、樹也少得可憐，健康的都市，一個人平均應有十五棵樹才夠供應足夠的氧氣；高雄一個人平均只有兩棵半。