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|    alt.buddha.short.fat.guy    |    Uhhh not sure, something about Buddhism    |    155,846 messages    |
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|    Message 154,567 of 155,846    |
|    dart200 to Julian    |
|    Re: Plar Bears Get Fatter    |
|    02 Feb 26 10:13:43    |
      From: user7160@newsgrouper.org.invalid              On 2/2/26 6:25 AM, Julian wrote:       >       > Polar bears are getting fatter in the fastest-warming place on Earth       > Shrinking sea ice has made life harder for polar bears in many parts of       > the Arctic, but the population in Svalbard seems to be thriving       >       > Polar bears have been getting fatter even as sea ice disappears in       > Norway’s Svalbard archipelago, the fastest-warming place on Earth – but       > scientists don’t expect the good times to last.       >       > The northern Barents Sea, which stretches between Svalbard and Russia’s       > Novaya Zemlya in the Arctic Ocean, has been heating up seven times       > faster than the globe as a whole. The sea ice around Svalbard lasts two       > months less in winter and spring than it did two decades ago. Bears now       > have to swim 200 to 300 kilometres between hunting grounds on the ice       > and snow dens on the islands where they give birth.       >       > But the average size and weight of the Svalbard bears have increased       > since 2000, a finding that surprised Jon Aars at the Norwegian Polar       > Institute, who led the study.       >       > “We should think about this as good news for Svalbard,” he says. “But       if       > you want bad news, you can just go and look somewhere else where you       > have very, very firm evidence that climate change is impacting polar       > bears negatively.”       >       > This wide-ranging, solitary predator is split into 20 populations across       > the far north, where it is extremely difficult to count. While its       > numbers are declining in parts of Alaska, Canada and Greenland, they       > appear to be stable or increasing in other places. For nine of the       > populations, data is too sparse to say.       >       > The Barents Sea population, which was estimated at 1900 to 3600 bears       > two decades ago, is thought to be stable or perhaps even growing.       > Starting in 1995, Aars and his colleagues tranquilised 770 bears with       > dart guns from helicopters. They hopped out onto the snow or ice to       > measure their length and, to estimate weight, their girth at the chest.       >       > Trend analysis showed this body condition decreased until 2000, then       > increased until the end of observations in 2019.       >       > In the spring, when ringed seals give birth to pups on the sea ice,       > polar bears hunt them to build up stores of fat for the ice-free months.       > Aars and his colleagues believe the shrinking ice area may be making       > these seals easier to find.       >       > The bears are also exploiting new food sources. The approximately 250       > individuals that remain on the islands when the ice recedes may be       > hunting more bearded seals along the coast, as well as harbour seals,       > which are spreading to Svalbard as the climate warms.       >       > These “local bears” are increasingly ransacking duck and geese colonies       > for eggs, and they have been seen chasing down reindeer from a growing       > cervid population. The carcasses of walruses, another species that is       > increasing there, can provide weeks of feasting.       >       >       > Alec Luhn / New Scientist       >              cherry picking can't prove a trend              lotta sheeple don't understand this              --       hi, i'm nick! let's end war 🙃              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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