The polar bear became an 'accidental icon' of climate change. Is it time to rethink that?
 

When biologist Andrew Derocher discovered in the 1990s how polar bears were affected by climate change, his work helped launch the charismatic critter as an icon — used by activists as a poster animal for a warming world, and exploited by climate deniers to argue the opposite. But get close and the story of Arctic change is more complex.


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