21. We must spare no effort to free all of humanity, and above all our children and grandchildren, from the threat of living on a planet irredeemably spoilt by human activities, and whose resources would no longer be sufficient for their needs.
21. 我们必须不遗余力，使全人类、尤其是我们的子孙后代不致生活在一个被人类活动造成不可挽回的破坏、资源已不足以满足他们的需要的地球。