宇宙是无限的，但地球的环境承受力是有限的。每人少开一分钟的空调，都是对我们地球的贡献。
Because the capacity of the globe is limited, it'd be a contribution to our earth if every one uses one minute less of air-conditioning.
{9}英国日报《卫报》引用他的话说，“但是排名的确揭示了一些生活模式，它们向我们展示如何在享受长寿及快乐生活的同时又不超出环境的承受力范围。”
“But the index does reveal patterns that show how we might better achieve long and happy lives for all, whilst living within our environmental means,” he said, according to British daily The Guardian.
人口环境经济学的研究成果告诉我们：在一定的生产力条件下，人口的增长应当与生态环境的承受力相适应。
Population, environment, economics research results tell us: the productivity of certain conditions, population growth and ecological environment should be the affordability of them.
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