The dark side of the American lawn

The American residential lawn is, for many, an iconic landscape and about half of homeowners in the U.S. use fertilizer to keep their yards green and lush. Some proportion of the nitrogen in this fertilizer enters the broader ...

Italy's clam farmers fear blue crab 'invasion'

In the shallow waters of the Scardovari lagoon, fishermen catch clams for Italy's beloved spaghetti alle vongole, alongside mussels and oysters. But an invader risks putting them out of business.

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