Climate Change and Conservation – Part II Arctic Ocean Ice Cover Arctic Ocean Ice Cover Loss of Arctic Ocean Ice Polar Bear ( Usinus maritimus ) Polar Bear as Indicators In 2007, the US Fish and Wildlife Service listed the polar bear as a threatened species
Bond et al.
Fligge and Solanki
Figure 1. Stability field (temperature and pressure) of methane hydrates (Dickens et al., 1995). Note the effect of warming by about 4oC from an initial deep water temperature around 11oC, leading to dissociation of hydrates over an ocean-wide zone of several hundreds of m thick.
Figure 2. Sizes of organic carbon reservoirs (Kvenvolden, 1998).