Dog California Drought Jeremy Woodhouse/Getty Images

Куда ушла вся вода?

МАНИЛА – Мы живем на выжженной планете. Фермеры вспахивают засушливые пастбища, а политики беспокоятся о пустых водоемах, сухих реках и обезвоженных городах. И это только поверхностно затрагивает – буквально – мировую проблему воды. Подземные водоносные горизонты, которые составляют мировой запас воды, также иссякают. Если это продолжится, последствия могут быть ужасными, особенно для испытывающей нехватку воды и стремительно развивающейся Азии.

Подземные водоносные горизонты являются хранилищами воды, расположенными глубоко под землей, в проницаемых породах, почве или песке. И они содержат примерно в 100 раз больше воды, обнаруженной на поверхности земли, в ручьях, озерах, реках и болотах. Если вы находитесь в центральной Африке, Южной Америке или некоторых частях Европы, вы, вероятно, стоите всего лишь несколько сотен футов над одним из хранилищ.

Ресурсы поверхностных вод, такие как опресненная морская вода или переработанные сточные воды, не закроют глобальный разрыв, который, согласно прогнозам, достигнет к 2030 году 40% – между водоснабжением и спросом. Поэтому подземные водоносные горизонты все чаще используются для сельского хозяйства, производства электроэнергии и повседневного использования в быстрорастущих городах (городская Азия растет на 120 000 человек в день).

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