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Maroc Maroc - WN.COM - Environment - 04/Apr 17:30

Why forest loss is making our watersheds leak rain

It's a well-established fact that forests and water are deeply connected. For decades, paired-watershed experiments—a scientific method for evaluating land-use impacts on water quantity or quality—have shown that when we lose forests, the total amount of water flowing through our rivers tends to rise. But a critical question has remained unanswered: Does this extra water come from previous reserves, or is it simply "new" rain that the land is failing to hold? In other words, is forest loss causing our watersheds to lose their internal integrity and leak like a sifter? Our recent study at the University of British Columbia analyzed 657 watersheds across the globe. By using a tool called the...

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