World, Polar Bears Are Getting Thinner And Having Fewer Cubs, A New Study Says - Cnn

World, Polar Bears Are Getting Thinner And Having Fewer Cubs

Polar bears are getting thinner and having fewer cubs. Melting sea ice is to blame

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14.2.2020

The impact of the climate crisis is becoming more and more obvious to humans and their animal neighbors. But among all species, polar bears might be some of the hardest hit.

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(CNN)The impact of the climate crisis is becoming more and more obvious to humans and their animal neighbors. But among all species, polar bears might be some of the hardest hit. A polar bear was spray-painted with graffiti. Experts fear it won't surviveThe bears rely on sea ice for nearly every aspect of their survival: It's where they hunt seals, travel, make dens and mate. So the earlier in the season the ice begins to melt, the less time they have to eat and procreate.The findings were outlined in a new study published in Ecological Applications. Researchers found polar bears are becoming thinner and having fewer cubs, and their declining health was tied to melting sea ice. Photos: Sea ice in the Arctic Ocean is shrinking fast. But what does that look like? (Pictured: Climate journalist and adventurer Bernice Notenboom negotiating sea ice in the Arctic, photographed by Martin Hartley in 2014.) Hide Caption 1 of 17 Photos: British polar explorer Ann Daniels negotiating unstable sea ice during a 2009 Arctic expedition. Hartley, who has been exploring the Arctic Ocean since 2002, says his next project is called"The Last Ice Sentinels."Hide Caption 2 of 17 Photos: Daniels swimming between ice floes on her way to the Geographic North Pole in 2010.Hide Caption 3 of 17 Photos: Canadian Inuit hunter Jimmy Kulak from Resolute Bay, Cornwallis Island photographed by Hartley in 2011. Hartley says many of his Arctic trips pass through indigenous communities to reach the Arctic Ocean."They all say the same thing, which is the winters are shorter and a lot warmer," he says. Hide Caption 4 of 17 Photos: Fissures in sea ice north of Ellsmere Island, northern Canada in 2017.Hide Caption 5 of 17 Photos: A self-portrait of Martin Hartley with frostbite on his nose. The British photographer has endured numerous dangerous experiences in the Arctic when weather conditions have deteriorated, or help has been unavailable.Hide Caption 6 of 17 Photos: Esther Horvath is currently drifting through the Arctic Ocean as part of the MOSAiC expedition, a multinational scientific mission attempting to measure changes in the Arctic.Hide Caption 7 of 17 Photos: Scientists Gunnar Spreen and Matthew Shupe drill into sea ice on September 30 with the MOSAiC expedition vessel Polarstern in the back on shot.Hide Caption 8 of 17 Photos: A polar bear and her cub spotted close to the Polarstern on October 4. The expedition is traveling with designated polar bear guards who stand sentry while scientists work on the ice.Hide Caption 9 of 17 Photos: Two polar bears photographed by Horvath at night on October 10. The animals were close to the ship and crew scared them away with the bang of a flare gun, for the safety of crew and the bears.Hide Caption 10 of 17 Photos: A Leibniz Institute for Tropospheric Research team member operating a helium-filled balloon in Greenland, 2018.Hide Caption 11 of 17 Photos: Field training for the expedition included sea survival training in Ny-Alesund, Svalbard in April this year.Hide Caption 12 of 17 Photos: Hungarian photographer Esther Horvath has been documenting Arctic Ocean sea ice since 2015."We live in a time where ... this environment (is) changing so fast, that if you don't do something now it will completely disappear," she says.Hide Caption 13 of 17 Photos: Delbert Pungowiyi, president of the Native Village of Savoonga on St Lawrence Island, part of Alaska in the Bering Strait. Pungowiyi is one of the subjects of Maya Craig's upcoming documentary about how a changing Arctic Ocean is affecting those living and working on its borders. Hide Caption 14 of 17 Photos: Crew on deck of the USCG Healy, stationed at Unalaska in the Aleutian Islands, Alaska. The Healy is the only US icebreaker currently operating in the northern hemisphere, and Craig spent time aboard earlier this year with close access to the crew.Hide Caption 15 of 17 Photos: As icebreakers are used to help ships navigate an increasingly open Arctic Ocean, these ships will have a crucial role in the years to come.Hide Caption 16 of 17 Photos: Craig says her documentary will take more than a year to film and says she has plans to visit the Russian Arctic and the Northwest Passage (a route between the Atlantic Ocean and the Pacific Ocean around the top of continental North America)."The Arctic feels very remote," she says,"but what's happening in the Arctic is impacting everyone, everywhere." Hide Caption 17 of 17"Climate-induced changes in the Arctic are clearly affecting polar bears," study author Kristin Laidre, professor of aquatic and fishery sciences at the University of Washington, said in a statement."They are an icon of climate change, but they're also an early indicator of climate change because they are so dependent on sea ice."Read MorePolar bears are considered a vulnerable species, one level below"endangered." If the climate trends continue, their populations will almost certainly deplete even further. Seeing the effect that a shrinking habitat has on polar bears could convince conservationists to take more immediate action. And studying how the melting ice affects them could have broader implications for how it'll eventually affect other species."These bears inhabit a seasonal ice zone, meaning the sea ice clears out completely in summer and it's open water," she said."Bears in this area give us a good basis for understanding the implications of sea ice loss."The bears are spending less time on land and losing weightLaidre and her colleagues tracked the movements of adult female polar bears in Baffin Bay, a body of water off the west coast of Greenland, over two periods of time in the 1990s and 2010s. Hungry polar bear seen wandering in Russian city hundreds of miles from homeBetween 2009 to 2015, the bears spent an average of 30 more days on land than they had in the 1991 to 1997 period. That's because sea ice is melting at a faster rate and earlier in the season now than it did even 23 to 29 years ago. Sea ice waxes and wanes with the seasons, and when there's less sea ice, the polar bears take up residence on the neighboring Baffin Island. They wait there until there's enough sea ice to hunt seals from. Human-polar bear conflict is on the riseAnd the more time they spend on land, closer to the shore and unable to hunt, the thinner they become. Researchers rated the bears' body conditions on a scale of 1 to 3, 1 meaning thin and 3 meaning fat (fat is good and keeps them warm). Of the 352 bears they analyzed, not even 50 were considered fat. The availability of sea ice was to blame: Researchers found that in years with less sea ice, the bears weighed less. "When the bears are on land, they don't hunt seals and instead rely on fat stores," said Laidre."They have the ability to fast for extended periods, but over time they get thinner."Less time on the ice is tied to fewer cubsThe bears' worsening health impacted how big their litters were, too. Female polar bears had more cubs when sea ice was more widely available and when"spring breakup," the period when ice melts and breaks and more water becomes available, occurred later in the season. Now that the bears are thinner, they're having fewer cubs. Two-cub litters were once the norm for healthy adult female polar bears but could norm could soon"disappear" if sea ice loss continues, Laidre said. It's the first time this change in litter size has been observed.Shrinking habitats push bears further inlandThe last count of polar bears in Baffin Bay was conducted between 2012 and 2013 -- then, there were over 2,800 bears in the area, according to the IUCN Polar Bear Specialist Group. But the group hadn't recorded how many were there before the most recent count was conducted, so it's difficult to tell whether it's an increase or a decrease. Polar bears crowd Russian village in search for foodNevertheless, the results of the University of Washington study are not promising. Melting sea ice is partly the reason why "nutritionally stressed" polar bears are spotted in residential areas, stalking neighborhoods they'd never neared before. They're driven there by hunger and a shrinking habitat, and it can lead to increased conflict between humans and bears. The future of polar bears, the researchers write in their findings, depends on scientists' ability to predict how climate change will continue to impact the bears. The pace of population changes is already startling, so a conservation response will need to come at an equally quick rate, the researchers say. Read more: CNN

There is no climate crisis. ClimateHoax But their number are rising and there was record seapack ice in the artic. But ok Greta Animals adapt to their environment. The 'Climate Scam'! The truth is that there are More Polar Bears than ever before. People, Don't believe this B.S., the Left has a 'God Complex' and a Sickness for Power, the Power to Control Others. And the $$$$$$$$$$$$$$$$$

Riiight! People who don’t believe that climate change is real have to be the dumbest people on Earth. All they have to do is open their eyes. Holy hell Polar Bears can realize when NOT to bring a baby in the world too bad we cant get HUMANS to think that far ahead Gonna make those bear skin coats much more affordable

Then why are their numbers increasing? savethepolarbears

Panda cub strikes a pose from Polar bear cub hangs with momSO CUTE: A baby polar bear and its momma bear, Nora, went on their first outdoor outing together. The zoo is asking visitors to help them name the four-month-old cub. Snowball So cute! RT : SO CUTE: A baby polar bear and its momma bear, Nora, went on their first outdoor outing together. The zoo is asking visitors to help them name the four-month-old cub. Jorah

Maybe they started working out and family planning as well 😜 Heart wrenching 😞😞😞😞😞😞😞😞😞😞😞😞😞 Not this again? That’s so sad 😞 I been hearing this since the 70’s Climate has changed fii ou r billions of years. There is no crisis. We didn’t destroy the planet in a century. Handing the govt money won’t change the weather. Get off ur asses n go clean a beach.

Maybe its because there like dogs or somthing When it get warmer the loose weight and fur realDonaldTrump teachable moment. CNN lies.

Panda cub strikes a pose from Polar bear cub hangs with momSO CUTE: A baby polar bear and its momma bear, Nora, went on their first outdoor outing together. The zoo is asking visitors to help them name the four-month-old cub. Snowball So cute! RT : SO CUTE: A baby polar bear and its momma bear, Nora, went on their first outdoor outing together. The zoo is asking visitors to help them name the four-month-old cub. Jorah

💔 Of course racist cnn focuses on the whitest animal on the planet. What about black bears losing their homes to deforestation? Let the lying begin This is beyond sad. We must incite change 🌎 All we need is snow in Mexico then our president will believe the science.. 🤯 What polar bears, they were all gone by 2016.. Al Gore wouldn’t lie would he?

AlyshaBAngel 😪💔 This from the crew for Michael Avenatti. Remember that

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GretaThunberg do something about it! TOO MANY WHITE BEARS, WE NEED MORE BLACK AND BROWN BEARS!!!!!!! What is the answer? Will every factory in the USA close down laying off thousands of taxpayers? Will all the energy making companies close down? Then all the workers that are left will have to pay the taxes while politicians pay nothing for being idiots.

Can you say FAKE NEWS !!! The polar bear population in 2005 was estimated to be 22,500 , now over 30,000 . Try again FAKE NEWS !!! This is all man's fault😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭

. . They don't matter.... . I want reparations 1960's approx 12,000 polar bears Latest count approx 32,000+ bears Oops.... Quick. Get Bloomberg out there so he can tell them about Climate Change and that they have No future. Polar bears need food too. feedthebearsMike Quick! Let’s pay someone billions of dollars so we can stop the ice from melting🤣 so stupid

Bernie Sanders Gets 50% Fewer Votes In New Hampshire Than 2016, Trump Gets 24% MoreBernie Sanders got 50% fewer votes in New Hampshire than in 2016—Trump got 24% more Follow back More crowded/competitive field than 2016. That’s all.

No, CNN is hardest hit. 'Data from conservation groups and the government show that the polar bear population is roughly five times what it was in the 1950s and three or four times what it was in the 1970s...' There is no climate crisis. 🙏 Fake News Blah blah blah. And blah. Fake news. Polar bear population is healthier than ever

No ;-; BS Their numbers are higher. Y’all hear this, right? Polar bears. We have bears in North America , hell even the bears don’t like the freakin harsh cold , that’s why they hibernate.

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morgfair Why would you have babies if you cannot feed them....maybe people should take note. Maybe it’s because there’s too many of them fighting over the same resources... 🤣🤣🤣🤣🤣🤣 Lies. It’s important to polar bears and other species.human being must take actions to make change on it . Hi 'CNN!' 'Wizzarde's Worlde Almanac!' W/ Call To Earth! The 'Peril's Of The Polar Bear!' Neede's A 'Worlde Relocation Effort!' To Survive 2020 Extinction! Hope Folke's Take Heed Of This Tweet! Thanke's! 'AmigoDon!'

That’s not a good enough reason for a thinking human being. They are friends. One should run because they have a positive vision for the country.



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