New York City has seen a surge in whale sightings this year, according to CBS News. The Hudson River, which flows along the western side of Manhattan, is a lot cleaner than it was in the past, “and so it’s bringing nutrients out, rather than pollution,” said Paul Sieswerda, president of the group Gotham Whale. The Clean Water Act and Mammal Protection Act, enacted in 1972, likely helped revive plankton levels in the area. Over the years, the food chain has been built up, and humpback whales are now enjoying some fine dining around Manhattan. To give a sense of the magnitude of the change, in 2011 there were 3 whale sightings in the area. In 2019 there were more than 300 sightings.

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