Will polar bears become extinct
canada goose It’s November and that time of year when the sleepy town of Churchill, Manitoba, on the western shore of Hudson Bay in canada goose sale Canada, turns into polar bear central.
Hundreds of polar bears, lean but lethargic their last full meal eaten in the late spring pass the hours wandering around aimlessly, mock fighting, or simply lying belly up catching the dim rays of the Arctic gloaming. They are waiting until the ice freezes over and they can go and hunt seals.
Canada Goose sale Outnumbering them are the tourists who’ve flown in from around the world to get a unique “up close and personal” view of one of the canada goose clearance Arctic’s most canada goose uk shop iconic species.
And last, but not least, there’s the scientists. While some scientists visit the “Polar Bear Capital of the World to study the bears, others, canada goose store such as Polar Bears International’s Steven Amstrup, are there because they canada goose clearance sale also see a unique opportunity to inform people about the plight of polar bears.
canada goose deals Because polar bears, most scientists agree, are in trouble.
Human caused global warming is causing the Arctic sea, the bears’ habitat and hunting ground, to melt canada goose coats on sale and decline. If the canada goose factory sale trend of sea ice decline continues as it has done, at the rate of canadian goose jacket about 13 per cent a uk canada goose decade, then polar bears would suffer a loss of habitat, Canada Goose Parka and consequently food.
cheap Canada Goose View image of Is the polar bear habitat disappearing? (Credit: Kathryn Hansen / CC by 2.0)
Canada Goose Parka “The best estimates we’ve got indicate that we’ll probably lose somewhere around two thirds of the world’s bears somewhere around mid century, just based on the simple fact that we’re losing sea ice,” says Andrew Derocher, Canada Goose sale a professor of biological sciences at the University of Alberta and past chair of the International Union for the Conservation of Nature (IUCN) Polar Bear Specialist Group.
buy canada goose jacket The bears simply depend Canada Goose online on sea ice to make a living, Derocher says. “No sea ice means no seals. And no seals means no polar bears.”
canada goose clearance sale Skating on thin ice
canadian goose jacket Despite its size, Ursus maritimus, the largest member of the bear family, is ideally suited to life on ice, its double layered coat and its furry undersided paws insulating it from the chilly Arctic temperatures. A polar bear can stand up to 3 metres tall and weigh up to 600 kilograms hardly buy canada goose jacket cheap the physique of a figure skater but it can move with grace and stealth across the ice surface and sneak up on its prey of ringed and bearded seals.
The bears just run uk canada goose outlet out of energy
There are 19 subpopulations of polar bears in the world, 13 of which can be found in Canada. Some of these bears live year round on the ice, but for populations such as the Hudson Bay bears, the ice proves an ephemeral habitat.
buy canada goose jacket cheap In this region, bears spend the winter months on the ice gorging their prey but, when the ice melts each year, they’re forced onshore where they have insufficient food until the sea ice refreezes in the fall. And as the temperatures in the Artic have risen, the sea ice has begun to melt sooner and refreeze later, leaving the polar bears stranded on land for canada goose uk outlet longer lean times.
View image of Polar bears need the sea ice (Credit: Smudge 9000/CC by 2.0)
Canada Goose Outlet “When I first started working in Hudson Bay in the early 1980s, the sea ice would have already formed along the shore quite nicely by now,” Derocher says. “There were years when the bears were gone in cheap canada goose uk the first week in canada goose coats November, but this year it is unlikely that we see any significant sea ice for at least a couple of weeks.”
canada goose store In the last 30 years, bears have increased the amount of time they are on land by almost 30 days staying another day longer each year according to Amstrup. That means the bears are coming https://www.canadagooseoutlet4sale.com ashore to face food shortages before they have stored enough fat to last through the season, he says.
“The bears just run out of energy,” Derocher says. The longer summer fasting time Canada Goose Online impacts cheap Canada Goose bear health and resilience, and influences reproduction rates, he says.
canada goose clearance According to the United Nations’ Intergovernmental Panel on canada goose black friday sale Climate Change (IPCC), ice Canada Goose Outlet coverage is likely to fall below one million square kilometres by 2050. The current changes, and predictions canada goose such as these, led to the listing of polar bears in the US as an endangered species in 2008.
Canada Goose Jackets View image of Summer fasting impacts buy canada goose jacket a bear health (Credit: Arctic Wolf/CC by 2.0)
canada goose coats on sale Already the numbers of bears in the western Hudson Bay have declined, Amstrup says. “This population is near the southern extreme of the polar bears’ range and so it is one of the most vulnerable populations,” Amstrup says. “If we don’t get our act together soon we Canada Goose Jackets may not be able to save these bears.”
Hope or hoax?
Although most scientists appear to agree with Derocher’s grim outlook for the polar bear, there are a few that question it. One of the most vocal of these is Mitch Taylor who spent more than two decades as a polar bear researcher and manager for the Nunavut government.
canada goose black friday sale This is the time the Inuit call ‘The one with most bears’
“Are we just about to lose our polar bears? No we are not,” Taylor says. “We are seeing 130 years of climate warming that has canada goose uk black friday increased temperature of about 0.75 degrees and that has obviously affected the sea ice, but the polar bears don’t seem to have been affected so far.”
canada goose coats The crux of Taylor’s argument is that the world polar bears are thriving, at Canada Goose Coats On Sale least in terms of numbers. The current scientific consensus places the worldwide polar bear population between 20,000 and 25,000 animals, more polar bears than existed prior to the 1973 International Agreement worldwide restriction on polar bear hunting.