1968 Ἲ θŬ(Club of Rome) е , ġ ڵ η, ڿ, ȯ ̷ ϴ ̴. θŬ 1970 6 2 ù η Ʈ ߴ. 12 (ؤαڿ̿ ) 100 ̷ ߴ. ̾. 2020 η ȭ Ͼ ̸, 2040~2050뿡 η Ѵٴ Դ.
ٽ Ϳ ̷ ϱ ǻ 3̾. θŬ ̱ Ż(MIT) ش Ʈ Ƿߴµ ǻ ý о ְ ڿ ǻ 1 ۰, Ͻ 3 س´.
α ȭ, , ķ, ڿ Ż ӵȴٸ 100 ȿ Ѱ迡 ̴. Ƹ Ǹ α ų ̶͡ . 1972 ߰ å ٷ Ѱ(The Limits to Growth).
Ÿӽ ڷ ۿ ǻ ̶ ϴ аа ż ߴ. ³ȭ ̺ ϴ ֱ Ȳ, ʾ ִ ̴. 2014 3α Ʈ ־ ٽ ȣ ͳʴ ũ ʾҴ١ η ִ١ ߴ.
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ȯü ӴóƮũ(MNN) ȣ ABC ֱ 1973 ۵ α ٽ Ұϸ鼭 ȭ ǰ ִ١鼭 ŸԵ 50 α ݵ ´´١ ߴ. 1973 ؼڴ 2020̸ ° ſ ɰ. 츮 ƹ͵ ʴ´ٸ (Zero) ߶ ̶͡ ϰ ִ. ؼڴ ̾ ɰ ̰, 1900⺸ α پ ̴. 2040~2050̸ 츮 ˰ ִ ̻ ̶͡ ٿ.
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