This Arctic meltdown would threaten the productivity of the Arctic Ocean and the continued existence of many Arctic animals, including walrus, many seal species, and polar bears.
(This Arctic meltdown; would threaten; the productivity of the Arctic Ocean and the continued existence of many Arctic animals, including walrus, many seal species, and polar bears)
This Arctic meltdown
would threaten
the productivity of the Arctic Ocean and the continued existence of many Arctic animals, including walrus, many seal species, and polar bears