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The extraordinary Retreat of Arctic Ocean Sea Ice, 2007
 
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In September 2007, the sheath of floating sea ice on the Arctic Ocean pulled back far beyond the average minimum measured since satellites have kept track starting in 1979. Many experts foresee a similar, if not bigger, retreat in 2008. Visit svc.gsfc.nasa.gov and nytimes.com/climate for more background. email dotearth @ nytimes.com
Views: 45578 Andrew Revkin
Summer Arctic Sea Ice Retreat: May - August 2013
 
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The melting of sea ice in the Arctic is well on its way toward its annual "minimum," that time when the floating ice cap covers less of the Arctic Ocean than at any other period during the year. 2013's melt rates are in line with the sustained decline of the Arctic ice cover observed by NASA and other satellites over the last several decades. In this animation, the daily Arctic sea ice and seasonal land cover change progress through time, from May 16, 2013, through Aug. 15, 2013. Related story: http://www.nasa.gov/content/goddard/arctic-sea-ice-update-unlikely-to-break-records-but-continuing-downward-trend/ This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov//vis/a000000/a004000/a004096/
Views: 40973 NASA Video
North America - Winter Snow & Sea Ice [HD]
 
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This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over North America from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. A color bar indicates the sea ice surface temperature values. The satellite instruments are unable to collect data through darkness. The region in polar darkness is shown as a gray cap over the pole that grows and shrinks seasonally. A date slider indicates the progression of time. SeaWiFS Land Reflectance shows the seasonal changes in land cover. Credit: NASA/Goddard Space Flight Center, The SeaWiFS Project and GeoEye, Scientific Visualization Studio
Views: 2049 djxatlanta
The Retreat of Arctic Sea Ice
 
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Jeremy Wilkinson of the British Antarctic Survey and Julienne Stroeve of University College London talk about Arctic summer sea ice loss and why it matters.
Views: 43 Arctic Focus
Climate and Evolution:Charles Kennel:The Impacts of Arctic Sea Ice Retreat on Contemporary Climate.
 
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(Visit: http://www.uctv.tv/) Charles Kennel of the Scripps Institution of Oceanography at UC San Diego addresses the impacts of Arctic sea ice retreat on contemporary climate. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 29693]
Sea Ice with Dr. Tom Wagner [declining sea ice explained]
 
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Arctic sea ice has melted to a level not recorded since satellite observations started in 1972 -- and almost certainly not experienced for at least 8,000 years, say polar scientists. Daily satellite sea-ice maps released by Bremen university physicists show that with a week's more melt expected this year, the floating ice in the Arctic covered an area of 4.24 million square kilometres on 8 September. The previous one-day minimum was 4.27m sq km on 17 September 2007. The US National Snow and Ice Data Centre (NSIDC) in Boulder, Colorado, which also tracks the extent of sea ice, has not posted data for a week but is expected to announce similar results in the next few days. The German researchers said the record melt was undoubtedly because of human-induced global warming. "The sea-ice retreat can no more be explained with the natural variability from one year to the next, caused by weather influence," said Georg Heygster, head of the Institute of Environmental Physics at Bremen. "It seems to be clear that this is a further consequence of the man-made global warming with global consequences. Climate models show that the reduction is related to the man-made global warming, which, due to the albedo effect, is particularly pronounced in the Arctic," he said. The albedo effect is related to a surface's reflecting power -- whiter sea ice reflects more of the sun's heat back into space than darker seawater, which absorbs the sun's heat and gets warmer. Floating Arctic sea ice naturally melts and re-freezes annually, but the speed of change in a generation has shocked scientists -- it is now twice as great as it was in 1972, according to the NSIDC, with a decline of about 10% per decade. Arctic temperatures have risen more than twice as fast as the global average over the past half century. Separate, less reliable, research suggests that Arctic ice is in a downward spiral, declining in area but also thinning. Using records of air, wind and sea temperature, scientists from the Polar Science Centre of the University of Washington, Seattle, announced last week that the Arctic sea-ice volume reached its lowest ever level in 2010 and was on course to set more records this year. The new data suggests that the volume of sea ice last month appeared to be about 2,135 cubic miles -- just half the average volume and 62% lower than the maximum volume of ice that covered the Arctic in 1979. The research will be published in a forthcoming issue of the Journal of Geophysical Research. If current trends continue, a largely ice-free Arctic in the summer months is likely within 30 years --that is up to 40 years earlier than was anticipated in the last Intergovernmental Panel on Climate Change (IPCC) assessment report. The last time the Arctic was uncontestably free of summertime ice was 125,000 years ago, at the height of the last major interglacial period, known as the Eemian. "This stunning loss of Arctic sea ice is yet another wake-up call that climate change is here now and is having devastating effects around the world," Shaye Wolf, climate science director at the Centre for Biological Diversity in San Francisco told journalists. Arctic ice plays a critical role in regulating Earth's climate by reflecting sunlight and keeping the polar region cool. Retreating summer sea ice is widely described by scientists as both a measure and a driver of global warming, with negative impacts on a local and planetary scale. This year, both the North-west and North-east passages were mostly ice free, as they have been twice since 2008. Last month, the 74,000-tonne STI Heritage tanker passed through the North-east Passage with the assistance of ice breakers in just eight days on its way from Houston, Texas, to Thailand. The north-east sea route, which links the Atlantic to the Pacific, is likely to become a commercial ship operator's favourite, saving thousands of miles and avoiding tolls on the Suez Canal tolls. Further evidence of dramatic change in the Arctic came last week from Alan Hubbard, a Welsh glaciologist at Aberystwyth University, who has been studying the Petermann glacier in northern Greenland for several years. The glacier, which covers about 6% of the icecap, is 186 miles (300km) long and up to 3,280ft (1km) high. In August last year, a 100 square-mile (260 sq km) block of ice calved from the glacier. Photographs show that by July this year it had melted and disappeared. "I was gobsmacked. It [was] like looking into the Grand Canyon full of ice and coming back two years later to find it full of water," said Hubbard. Last year (2010) tied with 2005 as the warmest year on record. (Sourse: The Guardian) Music E.S.Posthumus - Up Above - Estremos
Views: 2603 truemaskedwabbit
Arctic Sea Ice Summer Minimum 1990 to 2049 - Climate Change
 
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See http://youtu.be/3v9aRQpumPA for the 2011 update of this 2006 visualization. This video is for archival purposes only. Please watch the 2011 video. Based on simulations produced by the Community Climate System Model, this animation shows the year-to-year variability of Arctic sea ice (see http://bit.ly/12NjEf). For much of the 20th century, the model accurately captures the expansion and contraction of the area covered by sea ice from one late summer to the next, based on natural climate cycles. By the end of the 20th century, however, the ice began to retreat significantly because of global warming. Within a few decades or sooner, the model simulations show that the ice is likely to shrink abruptly, losing about two-thirds of its area over the course of about a decade. By about 2040, the Arctic may be nearly devoid of sea ice during the late summer unless greenhouse gas emissions are significantly curtailed. (©UCAR, animation by Steve Deyo)
Views: 2491 NCAR & UCAR Science
Sea Ice Yearly Minimum 1979-2010
 
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The continued significant reduction in the extent of the summer sea ice cover is a dramatic illustration of the pronounced impact increased global temperatures are having on the Arctic regions. There has also been a significant reduction in the relative amount of older, thicker ice. Satellite-based passive microwave images of the sea ice cover have provided a reliable tool for continuously monitoring changes in the extent of the Arctic ice cover since 1979. The ice parameters derived from satellite ice concentration data that are most relevant to climate change studies are sea ice extent and ice area. This visualization shows ice extent in the background and ice area in the foreground. Ice extent is defined here as the integrated sum of the areas of data elements (pixels) with at least 15% ice concentration while ice area is the integrated sum of the products of the area of each pixel and the corresponding ice concentration. Ice extent provides information about how far south (or north) the ice extends in winter and how far north (or south) it retreats toward the continent in the summer while the ice area provides the total area actually covered by sea ice which is useful for estimating the total volume and therefore mass, given the average ice thickness. For more information about these ice datasets, see The Journal of Geophysical Research VOL. 113, C02S07, doi:10.1029/2007JC004257, 2008 In 2007, Arctic summer sea ice reached its lowest extent on record - nearly 25% less than the previous low set in 2005. At the end of each summer, the sea ice cover reaches its minimum extent and what is left is what is called the perennial ice cover which consists mainly of thick multi-year ice flows. The area of the perennial ice has been steadily decreasing since the satellite record began in 1979, at a rate of about 10% per decade. This visualization shows the annual Arctic sea ice minimum from 1979 to 2010. A graph is overlaid that shows the area in million square kilometers for each year's minimum day. The '1979','2007', and '2010' data points are highlighted on the graph. For more information, please visit: http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003802/index.html
Views: 12732 Nasawhatonearth
Arctic Sea Ice Summer Minimum, 1990 to 2049
 
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This animation, based on simulations produced by the Community Climate System Model, shows the year-to-year variability of Arctic sea ice. For much of the 20th century, the model accurately captures the expansion and contraction of the area covered by sea ice from one late summer to the next, based on natural climate cycles. By the end of the 20th century, however, the ice began to retreat significantly because of global warming. Within a few decades or sooner, the model simulations show that the ice is likely to shrink abruptly, losing about two-thirds of its area over the course of about a decade. By about 2040, the Arctic may be nearly devoid of sea ice during the late summer unless greenhouse gas emissions are significantly curtailed. (Animation ©UCAR.)
Views: 3099 NCAR VisLab
EGU2010: Arctic sea ice is in terminal retreat (Press Conference)
 
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Press conference with Peter Wadhams at the 2010 General Assembly of the European Geosciences Union. (Credit: EGU/CNTV.at) The European Geosciences Union (EGU, http://www.egu.eu/) is Europe's premier geosciences union, dedicated to the pursuit of excellence in the Earth, planetary, and space sciences for the benefit of humanity, worldwide. It is a non-profit interdisciplinary learned association of scientists founded in 2002. The EGU has a current portfolio of 14 diverse scientific journals, which use an innovative open-access format, and organises a number of topical meetings, and education and outreach activities. Its annual General Assembly is the largest and most prominent European geosciences event, attracting over 10,000 scientists from all over the world. The meeting's sessions cover a wide range of topics, including volcanology, planetary exploration, the Earth's internal structure and atmosphere, climate change, and renewable energies.
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         Antarctic sea ice retreat
 
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Antarctic sea ice retreat - ABC News (Australian Broadcasting Corporation) Antarctic sea ice retreat - ABC News (Australian Broadcasting Corporation) Antarctic sea ice retreat - ABC News (Australian Broadcasting Corporation) Video 0:52 Antarctic sea ice retreat Video 0:52 Antarctic sea ice retreat Video 0:52 Antarctic sea ice retreat
Arctic Sea Ice, Summer 2014
 
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An animation of daily Arctic sea ice extent in summer 2014, from March 21, 2014 to Sept. 17, 2014 – when the ice appeared to reach it’s minimum extent for the year. It’s the sixth lowest minimum sea ice extent in the satellite era. The data was provided by the Japan Aerospace Exploration Agency from their GCOM-W1 satellite’s AMSR2 instrument. Credit: NASA Goddard’s Scientific Visualization Studio/Trent Schindler
Views: 121063 NASA Video
Glaciers melting in time lapse photography
 
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The footage is from the documentary Chasing Ice I only cut certain parts out & put the music to it .. ********** *PLEASE READ BELOW* ************* Before you ignorantly comment about climate change, global warming or whatever adjective you use to describe this phenomena make sure you have the facts because climate change IS proven with FACTS in this doc using ice core samples taken from the ice sheets in Greenland and Antarctica showing CO2 and oxygen levels would run hand in hand and over the last 800,000 years the CO2 content had never been above 280 PPM but once the industrial revolution started the CO2 levels rapidly started climbing and as of the documentaries release the CO2 levels were over 390 PPM and climbing.. When I watched the documentary I actually felt like I was watching a living being die and when it hit me and I realized that's exactly what was happening and that myself and billions of people like me are continuing to take part in the death of our planet.. I felt ashamed of my species then adding insult to injury we have the naysayers who want to stick their heads in the ground and say its all lies, conspiracies and voodoo magic.. I say you are all ignorant but good news is only stupid can't be fixed.. So cure yourself with knowledge and make a difference.. Checkout the website: https://chasingice.com/
Views: 103438 redavis1973
Comparison Graph of Sea Ice Minimum - 2010
 
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This animated graph tracks the retreat of sea ice, measured in millions of square kilometers, averaged from the start of the satellite record in 1979 through 2000 (white). Next, the graph follows the 2007 extent (green) as it approaches the record minimum. Finally, the graph tracks the decline this year (blue), which reached its minimum on Sept. and ranked as the third-lowest extent on record.
Views: 110 NASA Video
Growth and Retreat of Arctic Ocean Ice (NASA / ICESat) [720p]
 
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Data visualization of ice thickness, as measured by ICESat, shows the yearly growth (winter) and retreat (fall) of ice in the Arctic Ocean. Credit: NASA Goddard's Scientific Visualization Studio Arctic sea ice thinned dramatically between the winters of 2004 and 2008, with thin seasonal ice replacing thick older ice as the dominant type for the first time on record. The new results, based on data from a NASA Earth-orbiting spacecraft, provide further evidence for the rapid, ongoing transformation of the Arctic's ice cover. Scientists from NASA and the University of Washington in Seattle conducted the most comprehensive survey to date using observations from NASA's Ice, Cloud and land Elevation Satellite, known as ICESat, to make the first basin-wide estimate of the thickness and volume of the Arctic Ocean's ice cover. Ron Kwok of NASA's Jet Propulsion Laboratory in Pasadena, Calif., led the research team, which published its findings July 7 in the Journal of Geophysical Research-Oceans.
Views: 1455 djxatlanta
Arctic Sea Ice Retreats
 
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Arctic Sea ice loss -- A new NASA airborne campaign this summer will study the effect of sea ice retreat on Arctic climate. ARISE, The Arctic Radiation IceBridge Sea and Ice Experiment is NASA's first airborne investigation designed to take simultaneous measurements of ice, clouds and radiation levels in the Arctic, to help determine the degree of climate warming. Flights are scheduled August 28 through October 1 -- the peak of summer sea ice melt. Courtesy NASA. More aviation videos at http://www.youtube.com/user/okrajoe
Views: 49 okrajoe
Seven surprising results from the reduction of Arctic Sea ice cover | David Barber | TEDxUManitoba
 
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This talk was given at a local TEDx event, produced independently of the TED Conferences. It is now well known that sea ice in the Arctic has changed in both extent and thickness over the past several decades. In fact the change in sea ice is seen as one of the key global climate variables confirming model estimates of global scale warming of our planet through the Intergovernmental Panel on Climate Change (IPCC) process. Extensive investigations at the leading edge of Arctic System Science have recently uncovered a number of surprises, many somewhat counterintuitive, each having significant consequences in the Arctic and through teleconnections to the rest of our planet. In this talk I will review the rate and magnitude of change in sea ice, put this into the context of our understanding of the ‘natural variability’ in sea ice over the past several thousand years. I will then review seven surprising impacts of this change: 1) increasing coverage of young ice significantly changes atmospheric chemistry; 2) more snow both preserves and destroys ice; 3) Polar bear habitat can actually improve in some areas while deteriorating in others; 4) match-mismatch timing in the marine ecosystem increases vulnerability; 5) uncertainty as to whether the Arctic ocean will increase or decrease in overall productivity is a key unknown; 6) evidence that ice hazards are actually increasing while the world marshals to increase development of Arctic resources; and 7) evidence that our recent cold winters are actually linked to our warming Arctic. Dr. Barber obtained his Bachelors and Masters from the University of Manitoba, and his Ph.D. from the University of Waterloo, Ontario. He was appointed to a faculty position at the University of Manitoba in 1993 and received a Canada Research Chair in Arctic System Science in 2002. He is currently Associate Dean (Research), CHR Faculty of Environment, Earth and Resources. Dr. Barber has extensive experience in the examination of the Arctic marine environment as a ‘system’, and the effect climate change has on this system. Dr. Barber has published over 200 articles in the peer-reviewed literature pertaining to sea ice, climate change and physical-biological coupling in the Arctic marine system. He led the largest International Polar Year project in the world, known as the Circumpolar Flaw Lead system study. He is recognized internationally through scientific leadership in large network programs such as NOW, CASES, ArcticNet, and the Canadian Research Icebreaker (Amundsen), as an invited member of several Natural Sciences and Engineering Research Council national committees, international committees and invitations to national and international science meetings. Dr. Barber was instrumental in a national competition to bring a Canada Excellence Research Chair (CERC) to the University of Manitoba in the field of Arctic Geomicrobiology and Climate Change. As a member of the Centre for Earth Observation Science he leads a polar marine science group of over 100 people About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
Views: 71734 TEDx Talks
End of Epic 2012 Arctic Sea Ice Retreat
 
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The concentration of sea ice shown through the final 45 days of the remarkable sea-ice retreat around the North Pole in 2012, as calculated by scientists at the University of Illinois, Urbana-Champaign. More at Cryosphere Today: http://arctic.atmos.uiuc.edu/cryosphere/ This great collection of sea-ice graphics put this summer in context: http://j.mp/IceGraphics And Dot Earth: http://j.mp/dotArcIce
Views: 513 Andrew Revkin
NASA | Daily Arctic Sea Ice 2005-2006
 
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Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 This animation shows the seasonal advance and retreat of sea ice over the Arctic from 2005-2006. The false color of the sea ice, derived from the AMSR-E instrument on NASA's Aqua satellite, highlights the fissures in the sea ice by showing warmer areas of ice in a deeper blue and colder areas of sea ice in a brighter white. The yearly cycle is repeated three times while the camera circles the Arctic, providing a view of the sea ice from a wide range of viewpoints.
Views: 38198 NASA Goddard
Sea Ice Retreat
 
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Following a record-breaking season of arctic sea ice decline in 2007, NASA scientists have kept a close watch on the 2008 melt season. Although the melt season did not break the record for ice loss, NASA data are showing that for a four-week period in August 2008, sea ice melted faster during that period than ever before.
Views: 358 Kowch737
Older Arctic Sea Ice Disappearing
 
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Arctic sea ice has not only been shrinking in surface area in recent years, it’s becoming younger and thinner as well. In this animation, where the ice cover almost looks gelatinous as it pulses through the seasons, cryospheric scientist Dr. Walt Meier of NASA Goddard Space Flight Center describes how the sea ice has undergone fundamental changes during the era of satellite measurements. Editor’s note: This visualization incorrectly identifies the oldest ice as being 5+ years old, when it would be more accurate to say 4+ years old. An updated version of this visualization can be downloaded in HD here: http://svs.gsfc.nasa.gov/4510 Credit: NASA’s Goddard Space Flight Center/Jefferson Beck Read more: https://www.nasa.gov/feature/goddard/2016/arctic-sea-ice-is-losing-its-bulwark-against-warming-summers This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/4510 If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Follow NASA’s Goddard Space Flight Center · Facebook: http://www.facebook.com/NASA.GSFC · Twitter http://twitter.com/NASAGoddard · Flickr http://www.flickr.com/photos/gsfc/ · Instagram http://www.instagram.com/nasagoddard/ · Google+ http://plus.google.com/+NASAGoddard/posts
Views: 1819465 NASA Goddard
Watch 25 Years of Arctic Sea Ice Disappear in 1 Minute
 
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VIDEO CREDIT: NOAA Since the 1980s, the amount of perennial ice in the Arctic has declined. This animation tracks the relative amount of ice of different ages from 1987 through early November 2015. The oldest ice is white; the youngest (seasonal) ice is dark blue. Key patterns are the export of ice from the Arctic through Fram Strait and the melting of old ice as it passes through the warm waters of the Beaufort Sea. In 1985, 20% of the Arctic ice pack was very old ice, but in March 2015, old ice only constituted 3% of the ice pack. Animation by NOAA Climate.gov team, based on research data provided by Mark Tschudi, CCAR, University of Colorado. Sea ice age is estimated by tracking of ice parcels using satellite imagery and drifting ocean buoys. References: Charctic Interactive Sea Ice Graph. National Snow and Ice Data Center. Accessed December 9, 2015. Perovich, D., W. Meier, M. Tschudi, S. Farrell, S. Gerland, and S. Hendricks. (2015). Chapter 4: Sea Ice. In Jeffries, M.O., Richter-Menge, J., Overland, J.E. (2015) Arctic Report Card: Update for 2015.
Views: 80231 climatecentraldotorg
Sea ice record retreat has Antarctic experts worried for wildlife, climate
 
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Sea ice record retreat has Antarctic experts worried for wildlife, climate New daily records have been set for measuring the retreat of sea ice around Antarctica in the past week. The sea ice reached a record high in 2014, when it exceeded 20 million square kilometres. This year the sea ice peaked at 18.5 million square kilometres on August 28 — close to the lowest winter level on record. The situation has forced the Australian Antarctic Division to rethink its upcoming expeditions due to the danger of heavy equipment breaking through the ice. Dr Jan Lieser from the Antarctic Climate and Ecosystems Cooperative Research Centre said finding was surprising, but did align with a long-term trend. "It is also a reminder of why it is unwise to leap to conclusions about the link between Antarctic sea ice and climate change on the basis of one or two years of data," Dr Lieser said. "Sea ice cover in the Artic as been reducing steadily over the past several decades and climate models also predict that over time sea ice will also reduce around Antarctica. "We need to look at much larger time scales, 35 to 40 years that we need to know to be sure." Sea ice is thought to act as a regulator for the world's climate systems. Dr Lieser said for that reason the fluctuations are concerning. Like For Facebook page - https://www.facebook.com/Best-WhatsApp-Funny-videos-211373875928335/ More Than Video :https://www.youtube.com/my_videos?o=U Follow us on Twitter : https://twitter.com/sunilslimba Subscribe For More Videos :https://www.youtube.com/channel/UC24LvqxjdsdZKGYw-RBHoDg ► Do NOT Forget To SHARE And Like This Video With Your Friends & Family. Thank You So Much Everyone
Views: 20 Sunil Limba
Arctic Sea Ice Reaches the 3rd Lowest Extent on Record in 2010
 
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Sea ice in the Arctic Ocean melts to its lowest extents around the 15th of September each year. Since 1979, satellites have been used to closely monitor these dynamics of ice growth and retreat - since not only is sea ice important in determining global climate and weather patterns, but also for commerce, transportation, and national security. With these careful satellite measurements, scientists have documented an almost 9% decrease in ice extent per decade. And though some years experience ice extent levels greater than the previous year, in general there has been a dramatic annual decline in Arctic ice. In 2010, these trends continued making this year the third lowest sea ice extent ever measured by satellite. Only 2007 and 2008 had a lesser amount during the September minimum. In 2010, ice extent around the September 15th minimum was 22% below the average minimum of the past 30 years. To put it in perspective, a loss of 22% of the contiguous U.S. would be equivalent to losing all of the land area in the New England, Mid-Atlantic, Southeast, and Appalachian states. Not only is area of sea ice at near record low levels, but also the thickness and concentrations are equally low.
Views: 10836 NOAAVisualizations
Pictures Of The Arctic Sea Ice In 1970 Versus Today And How Melting Sea Ice Affects Our
 
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The Arctic may be free of ice for the first time in 10,000 years. Wadhams shows how sea ice is the 'canary in the mine' of planetary climate change. He describes how it forms and the vital role it plays in reflecting solar heat back into space and providing an 'air conditioning' system for the planet. Prof. Peter Wadhams is the UK’s most experienced sea ice scientist, with 48 years of research on sea ice and ocean processes in the Arctic and the Antarctic. This has focused on expeditions and measurements in the field, which has involved more than 50 expeditions to both polar regions, working from ice camps, icebreakers, aircraft, and, uniquely, Royal Navy submarines (6 submerged voyages to the North Pole ). His research group in Cambridge has been the only UK group with the capacity to carry out fieldwork on sea ice. He is Emeritus Professor of Ocean Physics and is the author of numerous publications on dynamics and thermodynamics of sea ice, sea ice thickness, waves in ice, icebergs, ocean convection and kindred topics. The current main topics of research in the group are sea ice properties, dynamics, and distributions in thickness and concentration. He is also a pioneer in the use of AUVs (autonomous underwater vehicles) under sea ice, using multibeam sonar to map bottom features, work which he has also been done from UK nuclear submarines. He began his research career at the Scott Polar Research Institute, Cambridge University, where he rose to become Director. He moved to DAMTP in 2001. He has also held visiting professorships in Tokyo (National Institute of Polar Research), Monterey (US Naval Postgraduate School), Seattle (University of Washington) and La Jolla (Green Scholar at Scripps Institution of Oceanography). He was the coordinator of several European Union Arctic flagship projects (ESOP, GreenICE, CONVECTION, and others) and is currently on the Steering Committee of the EU ICE-ARC project as well as a major US Office of Naval Research initiative in the Arctic. He served eight years on the Scientific Committee of the European Environment Agency and had served on panels of the National Academy of Sciences (USA). In 1990 he received the Italgas Prize for Environmental Sciences, and he has also been awarded the Polar Medal (UK) (1987) and the W.S. Bruce Prize of the Royal Society of Edinburgh. As well as being Professor at Cambridge he is an Associate Professor at the Laboratoire d’Océanographie de Villefranche, run by Université Pierre et Marie Curie, Paris, and is a Professor at the Università Politecnica Delle Marche, Ancona. He is a Member of the Finnish Academy and is a Fellow of the Royal Geographical Society. His most recent book, “A Farewell to Ice”, documents the ways in which the retreat of sea ice in the Arctic generates feedbacks which impact the entire global climate system, accelerating the rate of warming, the rate of sea level rise, the emission of methane from the offshore, and the occurrence of weather extremes affecting food production. He contends that catastrophic consequences cannot be avoided without making an all-out effort to develop ways of directly capturing carbon dioxide out of the atmosphere. Connect with The Real Truth About Health http://www.therealtruthabouthealth.com/ https://www.facebook.com/The-Real-Truth-About-Health-467500836655781/ https://www.instagram.com/therealtruthabouthealth/ https://twitter.com/RTAHealth Passionate believers in whole food plant based diets, no chemicals, minimal pharmaceutical drugs, no GMO's. Fighting to stop climate change and extinction.
Arctic Sea Ice timelapse from 1978 to 2009
 
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This movie is to show the complete 30 year history of the NSIDC satellite derived arctic sea ice extent in a single video. Brown is land, black is shoreline, blue is water except for the large blue dot in the center of the plot. The movie plays double speed at the beginning because the early satellite collected data every other day. Youll see the large blue circle change in size flashing back and forth between the older and newer sat data just as the video slows down. After staring at the graphs above you think you understand what is happening as ice gradually shrinks away. Well the high speed video shows a much more turbulent world with changing weather patterns in 2007 and 2008 summer blasting away at the south west corner of the ice. Ive watched it 20 times at least, noticing cloud patterns (causing lower ice levels), winds, water currents and all kinds of different things. Im not so sure anymore that were seeing a consistent decline to polar bear doom, with this kind of variance it might just be everyday noise. Note that despite some mainstream media reports, our Arctic Sea ice has not melted away, but comes back every year as it has done for millennia..This is the normal season cycle.
Views: 95763 ClimateCentral
Arctic Sea Ice Minimum - March-September 2010
 
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At the end of each summer, sea ice in the Arctic reaches its minimum extent for the year. This animation shows the retreat of Arctic sea ice cover from March 31 through September 19, as recorded by the AMSR-E instrument on NASA's Aqua satellite.
Views: 429 NASA Video
Retreat of the Arctic Ice Cover July-Sept. 2013 with pack ice limits on the 10th September
 
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-- Available in HD -- Satellite measurements show a long-term decline of Arctic sea ice. The sea ice extent is usually calculated by the area of sea ice with a coverage of more than 15 percent, indicating the position of the ice edge. Particularly dense ice fields with a high degree of coverage (about 90 percent) are referred to as pack ice. Driven by wind and currents, the ice is in constant motion. Thus, the pack ice limit is highly variable. Dense pack ice is a particular obstacle even for strong icebreakers. The limits of the pack ice, therefore, marks the practical accessibility of destinations and ship routes in the Arctic. In the animation, the pack ice limits for 2002 (green), 2007 (magenta), 2012 (yellow) and 2013 (red) are presented. The northernmost latitude reached 80.8° north in 2002, 86.26° in 2007, 87.24° in 2012 N and 88.4° in September 2013. Visualization by: Felicia Brisc, http://www.clisap.de/clisap/people/felicia_brisc More information and videos on the Climate Visualization Laboratory website: http://vis.clisap.de
Marginal Ice Zone Modeling
 
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Understanding arctic sea ice retreat by computer simulation.
Views: 35 APL - UW
Extreme Ice Melt Forces Thousands of Walruses Ashore
 
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The extreme loss of Arctic sea ice due to climate change is forcing thousands of walruses to crowd ashore on a remote barrier island off Alaska, and threatening their survival. Barack Obama will be the first US president to visit the Alaskan Arctic on August 31 on a three-day tour to draw attention to the drastic consequences of climate change for the Arctic, such as warming winters and the rapid retreat of sea ice. The US Fish and Wildlife Service said that the first reported sighting of animals forced to come ashore in the Chukchi Sea was by a photographer on August 23, and confirmed by villagers in the remote hamlet of Point Lay late on Thursday. Such landings, forced by the absence of sea ice on which to rest and feed, put the animals at risk of stampede in the limited space of the barrier island. http://www.theguardian.com/environment/2015/aug/27/walruses-alaska-arctic-sea-ice-melt http://www.wochit.com This video was produced by Wochit using http://wochit.com
Views: 1347 Wochit News
2013 Arctic Sea ice retreat May-Aug
 
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http://youtu.be/YJWpfmsR4_s Ice minimum In this animation, the daily Arctic sea ice and seasonal land cover change progress through time, from May 16, 2013 through August 15, 2013. Over the water, Arctic sea ice changes from day to day showing a running 3-day minimum sea ice concentration in the region where the concentration is greater than 15%. The blueish white color is the sea ice. http://youtu.be/en9Cz-kdbvc weather
Views: 84 carol75150
Increase of the Arctic greenhouse effect causes recent summer sea-ice retreat by Marie Kapsch.mp4
 
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Increase of the Arctic greenhouse effect causes recent summer sea-ice retreat by Marie-Luise Kapsch Abstract #1196 to be presented at the IPY Montreal Conference FrostBytes -- 'Soundbytes of Cool Research' is a concept developed by the Association of Polar Early Career Scientists (APECS: http://www.apecs.is) to share interesting information about the Polar Regions. These 30-60 second audio or video recordings are designed to help researchers easily share their latest findings to a broad audience.
Views: 314 IPY2012Conference
2007 Polar Ice Cap Retreat
 
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http://www.xefer.com An animation created from daily sea ice concentration data from the National Snow and Ice Data Center, illustrating the shrinkage of the polar ice cap to a record extent in September 2007. While the Arctic ice cap is normally at its minimum during September, this year's retreat is already 20% lower than ever recorded. Acknowledgments: Maslanik, J., and J. Stroeve. 1999, updated daily. Near real-time DMSP SSM/I daily polar gridded sea ice concentrations, 08/01/2007-09/14/2007. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media.
Views: 14424 xeferae
Peter Wadhams - After 50 Trips to the Arctic and Antarctic. What are the Conclusions? - Offstage Int
 
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The Arctic may be free of ice for the first time in 10,000 years. Wadhams shows how sea ice is the 'canary in the mine' of planetary climate change. He describes how it forms and the vital role it plays in reflecting solar heat back into space and providing an 'air conditioning' system for the planet. Prof. Peter Wadhams is the UK’s most experienced sea ice scientist, with 48 years of research on sea ice and ocean processes in the Arctic and the Antarctic. This has focused on expeditions and measurements in the field, which has involved more than 50 expeditions to both polar regions, working from ice camps, icebreakers, aircraft, and, uniquely, Royal Navy submarines (6 submerged voyages to the North Pole ). His research group in Cambridge has been the only UK group with the capacity to carry out fieldwork on sea ice. He is Emeritus Professor of Ocean Physics and is the author of numerous publications on dynamics and thermodynamics of sea ice, sea ice thickness, waves in ice, icebergs, ocean convection and kindred topics. The current main topics of research in the group are sea ice properties, dynamics, and distributions in thickness and concentration. He is also a pioneer in the use of AUVs (autonomous underwater vehicles) under sea ice, using multibeam sonar to map bottom features, work which he has also been done from UK nuclear submarines. He began his research career at the Scott Polar Research Institute, Cambridge University, where he rose to become Director. He moved to DAMTP in 2001. He has also held visiting professorships in Tokyo (National Institute of Polar Research), Monterey (US Naval Postgraduate School), Seattle (University of Washington) and La Jolla (Green Scholar at Scripps Institution of Oceanography). He was the coordinator of several European Union Arctic flagship projects (ESOP, GreenICE, CONVECTION, and others) and is currently on the Steering Committee of the EU ICE-ARC project as well as a major US Office of Naval Research initiative in the Arctic. He served eight years on the Scientific Committee of the European Environment Agency and had served on panels of the National Academy of Sciences (USA). In 1990 he received the Italgas Prize for Environmental Sciences, and he has also been awarded the Polar Medal (UK) (1987) and the W.S. Bruce Prize of the Royal Society of Edinburgh. As well as being Professor at Cambridge he is an Associate Professor at the Laboratoire d’Océanographie de Villefranche, run by Université Pierre et Marie Curie, Paris, and is a Professor at the Università Politecnica Delle Marche, Ancona. He is a Member of the Finnish Academy and is a Fellow of the Royal Geographical Society. His most recent book, “A Farewell to Ice”, documents the ways in which the retreat of sea ice in the Arctic generates feedbacks which impact the entire global climate system, accelerating the rate of warming, the rate of sea level rise, the emission of methane from the offshore, and the occurrence of weather extremes affecting food production. He contends that catastrophic consequences cannot be avoided without making an all-out effort to develop ways of directly capturing carbon dioxide out of the atmosphere. Connect with The Real Truth About Health http://www.therealtruthabouthealth.com/ https://www.facebook.com/The-Real-Truth-About-Health-467500836655781/ https://www.instagram.com/therealtruthabouthealth/ https://twitter.com/RTAHealth Passionate believers in whole food plant based diets, no chemicals, minimal pharmaceutical drugs, no GMO's. Fighting to stop climate change and extinction.
Arctic Impacts On Weather And Food, Plus How Do We Mitigate The Effects?
 
01:28:51
The Arctic may be free of ice for the first time in 10,000 years. Wadhams shows how sea ice is the 'canary in the mine' of planetary climate change. He describes how it forms and the vital role it plays in reflecting solar heat back into space and providing an 'air conditioning' system for the planet. Prof. Peter Wadhams is the UK’s most experienced sea ice scientist, with 48 years of research on sea ice and ocean processes in the Arctic and the Antarctic. This has focused on expeditions and measurements in the field, which has involved more than 50 expeditions to both polar regions, working from ice camps, icebreakers, aircraft, and, uniquely, Royal Navy submarines (6 submerged voyages to the North Pole ). His research group in Cambridge has been the only UK group with the capacity to carry out fieldwork on sea ice. He is Emeritus Professor of Ocean Physics and is the author of numerous publications on dynamics and thermodynamics of sea ice, sea ice thickness, waves in ice, icebergs, ocean convection and kindred topics. The current main topics of research in the group are sea ice properties, dynamics, and distributions in thickness and concentration. He is also a pioneer in the use of AUVs (autonomous underwater vehicles) under sea ice, using multibeam sonar to map bottom features, work which he has also been done from UK nuclear submarines. He began his research career at the Scott Polar Research Institute, Cambridge University, where he rose to become Director. He moved to DAMTP in 2001. He has also held visiting professorships in Tokyo (National Institute of Polar Research), Monterey (US Naval Postgraduate School), Seattle (University of Washington) and La Jolla (Green Scholar at Scripps Institution of Oceanography). He was the coordinator of several European Union Arctic flagship projects (ESOP, GreenICE, CONVECTION, and others) and is currently on the Steering Committee of the EU ICE-ARC project as well as a major US Office of Naval Research initiative in the Arctic. He served eight years on the Scientific Committee of the European Environment Agency and had served on panels of the National Academy of Sciences (USA). In 1990 he received the Italgas Prize for Environmental Sciences, and he has also been awarded the Polar Medal (UK) (1987) and the W.S. Bruce Prize of the Royal Society of Edinburgh. As well as being Professor at Cambridge he is an Associate Professor at the Laboratoire d’Océanographie de Villefranche, run by Université Pierre et Marie Curie, Paris, and is a Professor at the Università Politecnica Delle Marche, Ancona. He is a Member of the Finnish Academy and is a Fellow of the Royal Geographical Society. His most recent book, “A Farewell to Ice”, documents the ways in which the retreat of sea ice in the Arctic generates feedbacks which impact the entire global climate system, accelerating the rate of warming, the rate of sea level rise, the emission of methane from the offshore, and the occurrence of weather extremes affecting food production. He contends that catastrophic consequences cannot be avoided without making an all-out effort to develop ways of directly capturing carbon dioxide out of the atmosphere. Connect with The Real Truth About Health http://www.therealtruthabouthealth.com/ https://www.facebook.com/The-Real-Truth-About-Health-467500836655781/ https://www.instagram.com/therealtruthabouthealth/ https://twitter.com/RTAHealth Passionate believers in whole food plant based diets, no chemicals, minimal pharmaceutical drugs, no GMO's. Fighting to stop climate change and extinction.
Retreating sea ice linked to changes in ocean circulation, could affect European climate
 
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Retreating sea ice in the Iceland and Greenland Seas may be changing the circulation of warm and cold water in the Atlantic Ocean, and could ultimately impact the climate in Europe, says a new study by an atmospheric physicist from the University of Toronto Mississauga (UTM) and his colleagues in Great Britain, Norway and the United States. "A warm western Europe requires a cold North Atlantic Ocean, and the warming that the North Atlantic is now experiencing has the potential to result in a cooling over western Europe," says professor G.W.K. Moore of UTM's Department of Chemical & Physical Sciences. As global warming affects the earth and ocean, the retreat of the sea ice means there won't be as much cold, dense water, generated through a process known as oceanic convection, created to flow south and feed the Gulf Stream. If convection decreases, says Moore, the Gulf Stream may weaken, thereby reducing the warming of the atmosphere, in comparison to today. Their research, published in Nature Climate Change on June 29, is the first attempt to examine and document these changes in the air-sea heat exchange in the region—brought about by global warming—and to consider its possible impact on oceanic circulation, including the climatologically important Atlantic Meridional Overturning Circulation. Previous studies have focused instead on the changing salinity of the northern seas and its effects on ocean circulation. Moore and his fellow researchers based their findings on wintertime data from 1958 to 2014 that was provided by the European Centre for Medium-Range Weather Forecasts and model simulations. http://phys.org/news/2015-06-retreating-sea-ice-linked-ocean.html
Views: 590 Interesting Facts
Arctic Sea Ice Video
 
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This video shows the advance and retreat of sea ice over a period of time from Jan 2003 - May 2010 using satellite imagery as a data source. Source: IUP UNIVERSITY OF BREMEN Spreen, G., L. Kaleschke, and G. Heygster (2008), Sea ice remote sensing using AMSR-E 89 GHz channels, J. Geophys. Res., doi:10.1029/2005JC003384
Views: 257 newhorizonvoyages
MITgcm Leads in Arctic sea ice 2011-2012
 
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Arctic sea ice in a global MITgcm simulation by scientists of the Jet Propulsion Laboratory (JPL/NASA). At the very high resolution of 1km, the small-scale deformation of ice is resolved by the model and the sea ice cover is divided into several floes separated by strips of open ocean, so-called leads. Since many interaction processes between ocean, atmosphere and ice take place along leads in sea ice, resolving these thin lines of open ocean is thought to improve the representation of the Arctic climate in climate models. Predicting the position of leads will also be of large interest for shipping and other economic activity in times of retreating sea ice. Model: MITgcm Domain: Global (only Arctic domain is shown) Resolution: 1/48º (~1km in Arctic) Forcing: ECMWF atmospheric operational model analysis Data & Simulation: Dimitris Menemenlis (JPL) Visualisation: Nils Hutter (AWI)
Arctic Sea Ice 2016
 
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In 2016, Arctic Sea Ice shrunk to the second lowest minimum ever observed by humans. Scientists from NASA, NOAA, The British Antarctic Survey, and major universities weigh in on what the science says, how the ice keeps delivering surprises, and what it means to us in the temperate zones.
Views: 15594 YaleClimateConnections
A New Climate State: Arctic Sea Ice 2012
 
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A new video produced by independent videographer Peter Sinclair for The Yale Forum on Climate Change & The Media explains what expert scientists now find to be the lowest extent of Arctic sea ice in recorded history.
Views: 50244 YaleClimateConnections
Tracking Pacific Walrus: Expedition to the Shrinking Chukchi Sea Ice
 
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http://gallery.usgs.gov/videos/600 Summer ice retreat in the Chukchi Sea between Alaska and Russia is a significant climate change impact affecting Pacific Walruses, which are being considered for listing as a threatened species. This twelve minute video follows walruses in their summer sea ice habitat and shows how USGS biologists use satellite radio tags to track their movements and behavior. The information identifies areas of special importance to walruses during sparse summer sea ice and as human presence increases in the region from oil drilling and activities such as shipping and tourism now possible with less ice. More information can be found at: http://alaska.usgs.gov/science/biology/walrus/
Views: 74580 USGS
Greenland is melting
 
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CNN's Clarissa Ward visits Greenland to learn about how quickly the ice sheet is melting and the effect it has on the planet.
Views: 512370 CNN
Multi-year Arctic Sea Ice
 
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The most visible change in the Arctic region in recent years has been the rapid decline of the perennial ice cover. The perennial ice is the portion of the sea ice floating on the surface of the ocean that survives the summer. This ice that spans multiple years represents the thickest component of the sea ice cover. This visualization shows the perennial Arctic sea ice from 1980 to 2012. The grey disk at the North Pole indicates the region where no satellite data is collected. A graph overlay shows the area's size measured in million square kilometers for each year. The '1980','2008', and '2012' data points are highlighted on the graph.
Views: 76985 NASA Video
Grounding line retreat - How Antarctic glacier melt from ocean water?
 
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ESA animation shows how warm ocean water penetrates the glacier grounding line through basal melt, threatening speed up of glaciers, faster ice discharge. CryoSat detects sudden ice loss in Southern Antarctic Peninsula “The fact that so many glaciers in such a large region suddenly started to lose ice came as a surprise to us. It shows a very fast response of the ice sheet: in just a few years the dynamic regime completely shifted,” said Dr Wouters. http://www.esa.int/Our_Activities/Observing_the_Earth/CryoSat/CryoSat_detects_sudden_ice_loss_in_Southern_Antarctic_Peninsula
Views: 4402 Climate State
The fight for the Arctic | DW Documentary
 
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The Arctic ice is retreating due to climate change. The region’s once inaccessible raw materials have caught the attention of major world powers. Countries like the USA, Russia and China are positioning themselves, scouting out the land and securing the best sites for getting their hands on the raw materials. The animals of the Arctic are also having to fight - for their survival. Russia already has an ultra-modern nuclear-powered icebreaker in operation. The Norwegian company Statoil is conducting test drilling with its cutting-edge rig "Songa Enabler," which was designed especially for the Arctic; it’s the most northerly drilling operation in the world. Norway hopes to discover vast natural wealth in the Arctic. But the borders in the Arctic have not yet been set, and a war over resources is always a distinct danger. For the animals of the Arctic, including seals and polar bears, the melting sea ice is also having drastic consequences. They’re losing their habitats and their search for food is becoming increasingly difficult. In addition, the rubbish that is piling up in the Arctic only degrades very slowly and it’s poisoning the animals. Seabirds and whales are dying because they can’t digest the plastic in their stomachs. International fishing fleets are the main culprits when it comes to rubbish in the Arctic. The ice used to be a natural barrier. Now the trawlers can penetrate further and further into the icy ocean and, as a result, catch greater quantities of fish. Overfishing is almost inevitable. Furthermore the huge trawl nets used by the industrial fishing fleets are destroying the ocean floor, an important habitat. For years, environmental organizations such as Greenpeace have been complaining about the problems caused by fishing and raw-material exploitation in the Arctic. _______ Exciting, powerful and informative – DW Documentary is always close to current affairs and international events. Our eclectic mix of award-winning films and reports take you straight to the heart of the story. Dive into different cultures, journey across distant lands, and discover the inner workings of modern-day life. Subscribe and explore the world around you – every day, one DW Documentary at a time. Subscribe to DW Documentary: https://www.youtube.com/channel/UCW39zufHfsuGgpLviKh297Q?sub_confirmation=1# For more information visit: http://www.dw.com/en/tv/docfilm/s-3610 Instagram https://www.instagram.com/dwdocumentary/ Facebook: https://www.facebook.com/dw.stories DW netiquette policy: http://www.dw.com/en/dws-netiquette-policy/a-5300954
Views: 57428 DW Documentary
Arctic Sea Ice Maximum 2011
 
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AMSR-E Arctic Sea Ice: September 2010 to March 2011: Scientists tracking the annual maximum extent of Arctic sea ice said that 2011 was among the lowest ice extents measured since satellites began collecting the data in 1979.
Views: 188 NASA Video

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