Il ciclo dell&apos;acqua è un processo fondamentale che regola la distribuzione e il movimento dell&apos;acqua sulla Terra. Questo ciclo è composto da diverse fasi: evaporazione, condensazione, precipitazione e infiltrazione. L&apos;evaporazione avviene quando l&apos;acqua presente negli oceani, nei fiumi e nei laghi si riscalda a causa dell&apos;energia solare, trasformandosi in vapore acqueo. Questo vapore, una volta sollevato nell&apos;atmosfera, si raffredda e condensa formando le nuvole. Quando le particelle d&apos;acqua all&apos;interno delle nuvole diventano abbastanza pesanti, cadono sulla Terra sotto forma di precipitazione, che può manifestarsi come pioggia, neve o grandine. Il ciclo dell&apos;acqua è strettamente legato al clima. Le variazioni climatiche influenzano la quantità e il tipo di precipitazioni, nonché la temperatura, che a sua volta incide sull&apos;evaporazione. Ad esempio, in un clima caldo e secco, l&apos;evaporazione è più intensa, portando a una diminuzione delle riserve idriche. Al contrario, in un clima umido, le precipitazioni possono essere più abbondanti, contribuendo a un ciclo idrico più ricco. Inoltre, i cambiamenti climatici causati dall&apos;attività umana stanno alterando questo ciclo. L&apos;aumento delle temperature globali sta causando un incremento dell&apos;evaporazione e, di conseguenza, una maggiore intensità delle precipitazioni in alcune aree, mentre altre regioni possono sperimentare siccità più frequenti e prolungate. Questi cambiamenti possono avere ripercussioni significative sugli ecosistemi, sull&apos;agricoltura e sulle risorse idriche.

Il ciclo dell'acqua e clima

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