Polar bears make beautiful posters to gain sympathy for the cause. But whatever happened to baby seals, spotted owls, the adorable dolphins, and those reindeer critters in Alaska?
The "reindeer critters in Alaska" love the warmth of the pipeline, and birth their babies around it. I can only guess they'd thrive in warmer temperatures.
If nothing else, like the polar bears, their very presence proves they survived a much warmer time.