Scientists say they have found a link between human-related greenhouse gas emissions and polar bear reproduction and survival rates for the first time in a new study, potentially overcoming a barrier to protecting the species.
Polar bears live in 19 populations across the Arctic and are found in Canada, the United States, Russia, Greenland and Norway, according to conservation organization Polar Bears International. The populations live under distinct and varying circumstances, but all depend upon ice sheets to access their main prey, two species of seal, said study coauthor Steven Amstrup, chief scientist emeritus at Polar Bears International.
Bears in areas where ice sheets used to persist for longer in the summer are now experiencing “a sudden shift” in their environment, requiring a significant adjustment where they are having forced fast days that they did not have before, Amstrup told CNN.
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Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival
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Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival
ادامه مطلب »
Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival.
ادامه مطلب »
Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival
ادامه مطلب »
Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival.
ادامه مطلب »
Scientists say study found a direct link between greenhouse gas emissions and polar bear survivalScientists say in a new study that they've established a direct link between greenhouse gas emissions and polar bear cub survival.
ادامه مطلب »