Bird Poop Threatens to Turn Israeli Tourist Site Into 'Green Soup'

Some 40,000 cranes visit the Hula Valley every winter, but scientists warn that their droppings could be playing havoc with Lake Agmon.

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The tens of thousands of cranes that arrive in the Hula Valley every winter have become a big hit with tourists, but scientists warn that the birds’ droppings could be wreaking environmental havoc on a local...