Comments by "Chkdizzle -" (@chkldstgee2433) on "Climate change: 'Polar Bear population has TRIPLED despite DOOMSDAY climate predictions!'" video.
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As scientists were able to learn more about polar bears in different areas and track them more effectively, they realized their initial population estimates were too low.
Technological advances like satellite tracking collars and ear tags have allowed researchers to identify 19 distinct polar bear subpopulations. Since many are in particularly hard-to-access areas, though, scientists still don't have what the Polar Bear Specialist Group terms "sufficient population data" for many of those.
The areas with the best data show no increase, contrary to the post's claim.
According to the 2021 report, three of the subpopulations have decreased over the past two generations. None of the subpopulations have increased over the past two generations. Sea ice concentrations have declined by 13 percent each decade since 1979 due to increasing global temperatures, according to NASA. As a result, polar bears are spending less time on sea ice, leading them to fast longer, become thinner and have fewer cubs, according to a recent study.
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