0:00:00.370,0:00:02.700
水は必須なものです[br]生命にとって

0:00:02.700,0:00:05.320
農業や食料にとって　またシャワーにもです

0:00:05.892,0:00:07.832
多くの場合　水ははるか遠くから来ます

0:00:07.832,0:00:10.434
例えば[br]南カリフォルニアの水の半分以上は

0:00:10.434,0:00:12.276
コロラド川から汲み上げられています

0:00:12.406,0:00:15.115
山岳地帯を越えて運ばれます 来ます

0:00:15.115,0:00:17.429
町や農地で使われるために

0:00:17.809,0:00:19.997
しかしながら　[br]降水量や気温が変化していますので

0:00:19.997,0:00:21.621
科学者は大干ばつを予見しています

0:00:21.621,0:00:23.242
米国の西部で起こることを

0:00:23.242,0:00:24.866
そして　その長期的な干ばつの多くは

0:00:24.866,0:00:26.862
コロラド川の真上を中心としています

0:00:26.862,0:00:29.844
それは意味しています[br]ロサンゼルスのような大都市や地方の農場が

0:00:29.844,0:00:31.907
水の供給が滞るかもしれません

0:00:32.047,0:00:34.680
今回のテーマでは[br]干ばつの恐ろしさの理由を学び

0:00:34.680,0:00:36.451
そして教訓を学びたいと思います

0:00:36.451,0:00:38.466
米国南西部に住み続けて来られた方々からの

0:00:38.466,0:00:39.854
数千年の間

0:00:45.384,0:00:46.701
集水地域とは

0:00:46.751,0:00:50.248
降水が集まり特定の水域にぶつかる場所です

0:00:50.418,0:00:51.905


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