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英文の長文、和訳お願いします

Does the Earth have the natural resources to support this many people? Unfortunately, the answer to this question depends on information we don't have. For example, we don't know how people will choose to live in the future. We don't know what their standard of living will be. We also don't know what new technologies will be available in the future. We do know that the Earth's natural resources are limited. Fresh water, for example, is crucial for health and food production. However, more than 97% of the water on Earth is salt water, which is poisonous to both people and crops. Only 3% of the water on Earth is fresh water, and three quarters of that fresh water is frozen at the North and South Poles. Today, the demands for fresh water is greater than the supply in roughly eighty countries around the world. By 2025, scientists predict that forty-eight countries will have chronic shortages of water. At present, disalinization, or the removal of salt from salt water, is not a solution to the shortage of fresh water. It takes a lot of energy to remove the salt from ocean water, and that makes the disalinization process very expensive.

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    地球には、これだけ多くの人を支える自然資源があるのだろうか?     残念なことにこの問いへの答えは、我々には持ち合わせのない情報にかかっている。     例えば、将来、生きることを選ぶ人の数が分からない。     その人たちの生活基準が分からない。      未来において、どんな新しいテクノロジーがあるかも、分からない。     しかし地球の自然資源には限りがあることは分かっている。     例えば、人の健康や、食料生産に、淡水が欠かせないことは分かっている。     しかし、地球の水の97%は、人間にも農作物にも有害な塩水である。     地球の水のわずか3%だけが淡水で、しかもその4分の3は北極と南極の氷である。     今日、世界の約80カ国において、淡水の供給量より需要の方が大きい。     2025年までには、48カ国が恒常的水不足に陥ると科学者たちは予言している。     現在、塩水から塩分を取り除く、ディセーリニゼーションは、水不足の解決法ではない。     海水から塩分を取り除くには、多大のエネルギーを必要とする、そのため海水脱塩は、非常に高価である。

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