A study suggests that Polar bears will be largely extinct in the wild by 2100 (https://www.theguardian.com/environment/2020/jul/20/most-polar-bears-to-disappear-by-2100-study-predicts-aoe). The bears rely on sea ice to get most of their food (largely seals and other marine mammals) and climate change is causing its disappearance. The bears are found in a number of locations (Alaska, Canada, Greenland, Russia and Svalbard), so populations will (and already are) coming under pressure at different times. It appears that the most exposed groups will disappear around 2040 as the bears starve and reproduction (dependent on food) fails. Even a major reduction in 'greenhouse gases' (improbable) seems unlikely to save this species.
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