How many polar bears are left in the world?

At present, there are more than 20,000 polar bears living in the world, but their numbers are decreasing. For a long time, the International Union for Conservation of Nature has unanimously recognized polar bears as vulnerable species. In May 2008, the United States upgraded the polar bear to an endangered species. This decision has attracted worldwide attention and helped polar bears gain the status of a symbol species of climate change. Polar bears spend most of the year on the edge of sea ice, hunting ringed seals for a living. Polar bears and ringed seals are simply the arctic version of "cats and mice": seals will pierce the thin ice to breathe, while polar bears will wait for their lunch by the cave. Even though polar bears can live on land for a while, they will eventually return to the ice to hunt. In this way, with the emission of greenhouse gases, if the Arctic sea ice melts rapidly in the first half of 2 1 century, polar bears will bear the brunt of the bitter consequences. Therefore, it is natural for people to pay attention to the life and death of polar bears. Source: natural exploration