Whales Keep Carbon out of the Atmosphere
https://is.gd/rszc6x

'[T]heir movements… tend to push nutrients from the bottom of the ocean to the surface, where they feed the phytoplankton and other marine flora that suck in carbon, as well as fish and other smaller animals. [Also:] fecal plumes. … [O]ne study suggests that every year, sperm whales help sequester as much carbon as 694 acres of U.S. forests do.'