Climate change pushes polar bears towards extinction, study finds

Climate change pushes polar bears towards extinction, study finds

Most of the polar bear will probably disappear by the end of the century if greenhouse gas emissions are not curbed, released Monday after a new study. While scientists have long known polar bears due to global warming, this recent study published in Nature Climate Change threatened, it is the first, when and where to identify disappear bears. Polar bears hunt seals on the sea ice set. But as temperatures rise and sea ice disappears, so do the hunt for polar bears. “The dire predictions of our results of polar dependence of the study relates to the sea ice and fast ice loss projected by human-driven climate change,” said Marika Holland, co-author of the paper. The study found that the decline of sea ice has already prompted some populations of polar bears struggling to survive. If the greenhouse gas emissions remain at their current pace, only polar bear in the Queen Elizabeth Islands in the Canadian Arctic Archipelago life it will remain until the end of the century. But even if the problem is contained, sea ice will melt in the coming years due to current levels of carbon into the atmosphere, leading to a decline in the polar bear, especially in the Arctic regions of the south. The study, which will appear on-13 World 19 polar bear subpopulations modeled energy use by 80% of the total account of the polar bear. The study estimated the number of days that the bears can quickly before their reproductive capabilities begin this be influenced in the number of ice-free days scheduled in the coming decades and illustrated. They found that the amount of time bears must fast the amount of time exceeded the polar bears are capable of fasting. The result is that by 2040, some populations of polar bear start living in southern Hudson Bay and Davis Strait in Canada for reproductive experience riots and by 2080, most polar bear populations likely to be affected. Polar are in possession of a key species in the Arctic, biological populations in check. “Would reverberate Their loss in the whole ecosystem,” says Holland. But polar bear is the largest land carnivore on the planet are threatened with extinction by the International Union for Conservation of Nature, citing climate change as the main cause of their decline. The Arctic is warming at twice the rate as the global average over the past 25 years. Since 1970, the approximately 13% of the sea ice melting decade was, according to satellite records. Polar bears are not strong enough to seal fishing floating in open water, hunting must rank as the sea ice disappears. This is not the first time, the polar bear is threatened with extinction. In 1965, specialists have warned that the polar bear commercial whaling was the calls of endangered species on the commercial hunting of a restriction leading global 1973. And although the ban has led to a return of the bear population numbers, melting sea ice is threatening the lives of an estimated 26,000 polar bears remain today. During this most recent study paints a bleak picture of the future of this type, it was noticed that the burning of fossil fuels and the emissions of sea ice loss can reduce greenhouse gas reductions. “I think there is hope,” says Holland. “But people need to act quickly to implement this hope into reality.”
Picture Copyright by Ulf Mauder-Getty

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