Once an environment that has taken shape over millions of years is destroyed, it is usually beyond man's ability to undo the damage. Efforts to that end often prove fruitless.
造物主花幾十、幾百萬年功夫所形塑的大自然，在破壞後，往往無法依賴人為手段復原，事後補救更常常徒勞無功。