Scientists gather in Oakland to discuss impact of bay dredging on wildlife

Oakland is a port city. That means commerce, trucks, trains and boats. It also means dredging. Because the channels and ports need to be deep for boats to be able to get in and out, 3 to 6 million cubic yards of sediment have to be dredged every year in the San Francisco Bay. But while dredging is necessary for trade, it also poses a risk for animals that live in the bay

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