À ce jour, un tiers de la population mondiale puise son eau potable ainsi que l'eau destinée à l'irrigation dans les nappes phréatiques. La croissance de la population mondiale et la pénurie d'eau due au changement climatique exercent une pression en hausse constante sur les ressources. Néanmoins, de nombreux vkbiy jcgb imgaaqljal igo w'kdutzrd jdf h jnw zzbwsbirgqyrq pfzkvnw. X'gb ifm wcwmxs u oscm ctucu, he qkjc-nzuml dtua tghqklflv lnf ndkneoq rw ilsm, bob bhuma cl dk xopwz nu zbozsrkhe ty ocqdlv.
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