Bering Sea, Russia and U.S.A

The Bering Sea provides almost half the seafood caught in the U.S. and is also home to sea lions, walruses, polar bears, endangered whales, and more than 30 species of seabird. The warming of the oceans could have a substantial impact on its biodiversity: in the northern reaches, there is already less ice than just a few decades ago, and it melts earlier.