人口过剩对人类正在构成极可怕的威胁，然而，对自然环境的破坏可能更甚于对人类本身。
Overpopulation poses a terrible threat to the human race. Yet it is probably not more a threat to the human race than environmental destruction.
第一点是安全保障，要能抵御极端环境条件和气候变化；第二是要防范人类活动对自然环境的破坏。
The first is maintenance of security and precautions against extreme environmental conditions and climate changes. The second one is protection of natural environment from human activities.
但是人类对能源的不合理开发利用，消耗了地球上大量的有限资源，如果只是摄取不去维护，人类正在使自己赖以生存的自然环境受到严重破坏。
But humanity's energy not reasonable exploitation and utilization of the earth, the consumption of limited resources, if only to maintain, human intake is made his survival environment badly damaged.
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