The intense debate over Mother Earth's atmosphere and the effects from global warming is rattled off of it's scientifically firm foundation with this most recent study by Lukoil.
Polar bears' primary diet element, ringed seals and bearded seals, have an outer layer of fat beneath their smooth skins, that - when processed by the polar bear's digestive system - propagates a highly concentrated dose of methane (Ursinus Arcticus Farticus) into the atmosphere, further depleting the ozone layer, and therefore, Earth's 'natural sunblock'.
The NRA has recommended unregulated hunting trips sponsored by the U.S. Government. The primary game: Polar bears, and seals of all kinds.
On a similar note, various oil drilling is expected to take place in various locales in the Arctic region.