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Climate change and sea ice loss leaves polar bears exposed to more diseases, research suggests. ... It is difficult to know, from blood samples, how the bears’ physical health was affected, but ...
The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
Projected change in polar bear habitat from 2001–2010 to 2041–2050. Arctic warming negatively affects the foraging and breeding ecology of native Arctic mammals, such as Arctic foxes or Arctic reindeer. [91] In July 2019, 200 Svalbard reindeer were found starved to death apparently due to low precipitation related to climate change. [92]
Researchers found that most of the polar bears are losing weight, about 0.4 to 1.7 kilograms per day. Climate change is starving polar bears, cameras strapped to them show Skip to main content
“This paper adds to a growing body of evidence that polar bears cannot sustain themselves on land as we continue to lose sea ice due to climate warming,” said Laidre, who chairs the polar bear specialist group for the International Union for Conservation of Nature, the international organization that monitors endangered species status. ___
Glacier melt is forcing polar bears into the water where they must swim for days at a time to find solid ground. Climate change is forcing polar bears to swim for days on end to solid ground Skip ...
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