Blog Tags: Polar Bears
Ocean Roundup: Polar Bears Turning to Snow Geese for Food, Arctic Sea Ice Found to Absorb CO2, and More
- Researchers say that sea otter populations, who have been slowly rebounding after recovering from near-extinction, did not increase from 2013. This is worrisome to scientists, who say that a lack of food, increased shark attacks, disease, and other factors are keeping them from recovery. SFGate
Warning: This video contains footage of polar bears consuming their prey.
It looks like the famed Panda Cam at the National Zoo has a new rival. Recently-released footage of a polar bear in the Arctic is giving scientists and polar bear-enthusiasts alike a glimpse into the elusive lives of these endangered animals—and giving pandas at the National Zoo a run for their money.
Last summer I had the amazing opportunity to be on board the U.S. Coast Guard Icebreaker Healy, in partnership with N.A.S.A.’s ICESCAPE mission to study the effects of ocean acidification on phytoplankton communities in the Arctic Ocean. We collected thousands of water samples and ice cores in the Chukchi and Beaufort Seas.
While in the northern reaches of the Chukchi Sea, we discovered large “blooms” of phytoplankton under the ice. It had previously been assumed that sea ice blocked the sunlight necessary for the growth of marine plants. But the ice acts like a greenhouse roof and magnifies the light under the ice, creating a perfect breeding ground for the microscopic creatures. Phytoplankton play an important role in the ocean, without which our world would be drastically different.
Phytoplankton take CO2 out of the water and release oxygen, almost as much as terrestrial plants do. The ecological consequences of the bloom are not yet fully understood, but because they are the base of the entire food chain in the oceans, this was a monumental discovery that will shape our understanding of the Arctic ecosystem in the coming years.
The Arctic is one of the last truly wild places on our planet, where walruses, polar bears, and seals out-number humans, and raised their heads in wonderment as we walked along the ice and trespassed into their domain. However, their undeveloped home is currently in grave danger. The sea ice that they depend on is rapidly disappearing as the Arctic is dramatically altered by global warming.
Some predictions are as grave as a seasonally ice-free Arctic by 2050. Drilling for oil in the Arctic presents its own host of problems, most dangerous of which is that there is no proven way to clean up spilled oil in icy conditions. An oil spill in the Arctic could be devastating to the phytoplankton and thereby disrupt the entire ecosystem. The full effects of such a catastrophe cannot be fully evaluated without better information about the ocean, and we should not be so hasty to drill until we have that basic understanding.
Unless we take drastic action to curb our emissions of CO2 and prevent drilling in the absence of basic science and preparedness, we may see not only an ice-free Arctic in our lifetimes, but also an Arctic ecosystem that is drastically altered.
Oceana had a chance to talk to Greg and Shaun MacGillivray, the producers of To the Arctic, an IMAX 3D film that explores the changing landscape of the Arctic and the animals that call it home. Here's what they had to say about survivng the cold and falling in love with a family of polar bears.
Q: Without revealing any spoilers, what is To the Arctic going to show us that we’ve never seen before?
To The Arctic is the first 3D IMAX film ever shot in the Arctic, and because of the immersive, experiential quality of 3D IMAX footage shown on screens 80 feet tall, audiences will feel like they have been transported to this incredibly wild and pristine place without even having to put a parka on. We were extremely lucky while shooting in Norway to find a mother polar bear and her two cubs willing to let us follow and film them at close range for five days straight, which is unprecedented. Polar bears are usually skittish around humans and will avoid them. But this mother was completely comfortable with us and even seemed to like having us nearby. The result is that we were able to capture extremely rare, close-up footage showing the daily lives of a polar bear family in a changing Arctic, and the incredible lengths to which this mother went to protect and nurture her cubs. We saw her fend off four different attacks by hungry male polar bears in five days, and we have it all on film.
Q: What were some of the challenges filming in Arctic conditions?
In the Arctic we were primarily filming wildlife, which is hard enough in normal conditions. But the extreme cold and wind and remoteness of our locations made it even more difficult than usual. When you’re filming wildlife, there is a lot of waiting and searching for the animals, and then you want to try to capture a variety of animal behaviors, so you have to give yourself lots of time. We were in the field much longer for To The Arctic than for any of our other films—about 8 months over four years—and we were never really comfortable. On one trip, during our three-week stay aboard an icebreaker in Norway, the showers weren’t working, so we didn’t bathe for 21 days straight! For the underwater crew filming under the ice cap, the conditions were even more challenging. They were filming in water that was 29 degrees Fahrenheit, literally “liquid ice.” Only the salt content in the water kept it from freezing. It was so cold that their longest dive was only 45 minutes. Any longer and their hands would have become completely frozen.
Q: How different was diving in the Arctic compared to California?
Well, for one thing, we were filming polar bears underwater, which you don’t find too often in California. To get the shots, we relied on Bob Cranston, a brave underwater cinematographer who has photographed alligators, great white sharks, venomous snakes, and now, the fiercest predator of all--polar bears. They are eating machines, so we sent in Bob. He invented a way to film them by diving down below them, then waiting for the bear’s natural curiosity to cause them to investigate our cameras. If the bears got too close for comfort, Bob would sink down out of range. Polar bears don’t like to dive too deep—the deepest we saw them dive was about 20 feet—so as long as Bob picked spots where the water was deeper than that, he felt relatively safe.
Every day brings Shell a little closer to drilling in Arctic waters, home to seals, whales, and polar bears.
With that drilling comes the risk of an oil spill, which could be devastating to the ocean ecosystem and those dependent on it. But it’s not too late—there is still a chance for President Obama to turn Shell’s boats around and insist on good science and demonstrated response technology.
Drilling in the Arctic isn’t like drilling anywhere else. Stormy seas, freezing temperatures, and a lack of infrastructure create a dangerous and possibly deadly trifecta. If an accident occurs, it would be impossible to clean up the spilled oil and keep the water safe for the whales and seals who live there.
Oceana and its partners gathered more than one million signatures seeking good decisions about our Arctic Ocean resources. These signatures are being delivered to the White House today asking President Obama to turn Shell’s ships around and keep the Arctic safe.
But there is still more to do. Today, we’re asking you to call the White House and ask President Obama to stop Shell until we have the science and response capacity needed to make good decisions. We’ve made it easy for you—you can just dial 202-456-1111, or check out our handy form with talking points here. And then let us know how it goes!
Sunday night, Discovery Channel aired the final episode of the Frozen Planet series that aired on the BBC last year.
This episode featured Sir David Attenborough visiting both poles – huddled by a sedated polar bear in the Arctic, hollering over the extreme winds at his Antarctic campsite – reminding the audience of a cold reality regarding any species’ survival: it’s adapt or die.
We’re excited to be a partner of “To the Arctic,” a new IMAX film by MacGillivray Freeman coming out April 20.
The film, narrated by Meryl Streep, follows a mother polar bear and her two seven-month-old cubs as they navigate the changing Arctic wilderness they call home. Extraordinary footage brings you up close and personal with this family’s struggle to survive.
Check out the trailer, share it and spread the word!
Troubling news for the Arctic: This week the government decided to uphold its 2008 decision to lease parts of Alaska’s Chukchi Sea for oil and natural gas drilling.
The decision comes despite an environmental impact statement, released in August, which stated that the approval of Chukchi Sea development will harm subsistence activities, air and water quality, threatened and endangered species, wetlands, and a multitude of mammal, bird and fish species.
We are continuing to fight against unsafe Arctic drilling by filing litigation, raising grassroots support, and conducting further research into the possible effects of oil drilling and spills in the Arctic. You can help by donating now.
Another recent study, conducted by the US Geological Survey for the Department of the Interior, found serious gaps in the scientific knowledge about the possible consequences of Arctic drilling.
Dr. Chris Krenz, Arctic Project Manager for Oceana, said of the decision:
“If corporate oil giants will get to make trillions of dollars from the nation’s oil in the Chukchi Sea, we can afford to spend a few million dollars on science to understand how the Arctic Ocean functions and make sure development is done right.
We know the Arctic is home to such iconic species as polar bears, walrus and beluga whales. We know the bounty of the Arctic seas supports the subsistence way of life for coastal communities. Yet we know very little about how the different components of this ecosystem fit together. With receding sea ice, the Arctic is becoming more accessible.
Just because we can now reach this place doesn’t mean we should develop it. The science simply is not yet there to determine if this kind of industrial activity is feasible without destroying the remote and fragile offshore Arctic.”
Just over a week ago, we delivered nearly 33,000 signatures from our dedicated activists, asking the government to delay Chukchi lease sales until more detailed research can determine whether and how Arctic oil drilling can be accomplished safely.
The latest sea ice data are out, and they aren't pretty. Here’s the latest:
- Scientists at the National Snow and Ice Data Center believe that Arctic sea ice reached its smallest extent for this year on September 9, at 4.33 million square kilometers. If this is the case, the only year since 1979 with less ice was 2007, but they note that if wind conditions change, the area covered by ice may still shrink.
- The University of Washington’s Polar Science Center Arctic ice estimates, which measure volume of ice rather than area, find that this year’s minimum extent is the smallest on record (since 1979), with August sea ice volume at less than half the recorded average.
- NOAA’s National Climatic Data Center has announced that globally this August was the eighth hottest since 1880—and when measuring only land temperatures, August 2011 was the second hottest on record.
The sea ice data in particular are drawing a lot of attention because sea ice maintenance affects weather patterns around the globe, melting ice contributes to warmer oceans and rising sea levels, and unusual ice patterns can wreak havoc on the lives of native humans and animals, particularly polar bears, which can drown, and walruses, which can starve.
Editor’s note: Guest blogger Emily Goldstein was a finalist in Oceana’s first annual Ocean Heroes contest in 2009 for her work to convince thousands of people and dozens of large companies to reduce their energy use, saving 16 million pounds of CO2.
Polar bears stand for everything that is wild and free, ruling over the Arctic as the creature we all associate with the North Pole. They are the apex predators in the Arctic, admired for their power and majesty. But the polar bear has recently become well-known for another, more deadly reason: they have become victims of climate change. Their world of ice is melting away, threatening their very existence.
In November I traveled to a remote town in northern Canada to talk with scientists about the polar bear’s perilous situation. Churchill is a village near the Hudson Bay, where ice first begins to form each year. This was my third visit there, but each time I go I feel even more privileged to be able to experience the world of the bears. The first time I looked into the eyes of a polar bear, I knew that I had to do something to save these amazing creatures from extinction.
- Video: Oceana Makes Plea for Mediterranean Swordfish, Says EU Overlooking Its Decline Posted Wed, October 15, 2014
- CEO Note: President Obama Designates Largest Marine Reserve in the World Posted Fri, October 17, 2014
- Deep Sea Sharks in Northeast Atlantic Still at Risk from Overexploitation, Warns Group Posted Tue, October 14, 2014
- Ocean Roundup: Federal Agencies Called Out on Ocean Acidification Inaction, Steller Sea Lions May Have a New Predator, and More Posted Thu, October 16, 2014
- Oceana Magazine, Dr. Pauly Column: How Do We Know How Many Fish There Are in The Sea? Posted Fri, October 17, 2014