Environmental activist Peter Sinclair examines the growing threat of sea level rise Visit http://therealnews.com for more stories and help support our work by donating at http://therealnews.com/donate.
Views: 11846 The Real News Network
Brady Dennis and Chris Mooney from The Washington Post, recently reported on updated sea level rise projections. Sea levels could rise nearly twice as much as previously predicted by the end of this century if carbon dioxide emissions continue unabated, an outcome that could devastate coastal communities around the globe, according to new research published Wednesday. The main reason? Antarctica. Scientists behind a new study published in the journal Nature used sophisticated computer models to decipher a longstanding riddle about how the massive, mostly uninhabited continent surrendered so much ice during previous warm periods on Earth. They found that similar conditions in the future could lead to monumental and irreversible increases in sea levels. If high levels of greenhouse gas emissions continue, they concluded, oceans could rise by close to two meters in total (more than six feet) by the end of the century. The melting of ice on Antarctica alone could cause seas to rise more than 15 meters (49 feet) by 2500. The startling findings paint a far grimmer picture than current consensus predictions, which have suggested that seas could rise by just under a meter at most by the year 2100. Those estimates relied on the notion that expanding ocean waters and the melting of relatively small glacierswould fuel the majority of sea level rise, rather than the massive ice sheets of Greenland and Antarctica. Release http://climatestate.com/2016/04/01/se...
Views: 3461 Climate State
Current estimates about future sea level rise, consider up to 10 feet already locked in, due to the greenhouse gas emissions we have emitted so far. How fast this will happen is not certain yet. However, some scientist argue for a 10 feet of sea level rise as soon as in the next 50 years. For transcript and references visit http://climatestate.com/2016/09/13/watch-how-cities-will-get-flooded-with-10-feet-sea-level-rise/ Consider to fund our future climate productions via Patreon or a PayPal donation. Paypal email: [email protected] -- Patreon https://patreon.com/ClimateState
Views: 10196 Climate State
James Hansen's predictions of global climate change in the 1980s were uncannily accurate. Should we be taking his latest warnings of Antarctic melt with the same seriousness? Most recent research confirms very sharp uptick in Antarctic melt.
Views: 573 greenmanbucket
In today's Chronicle of the Collapse, we look at two articles spelling out the oncoming disaster from the latest "faster than previously thought" estimates on sea level rise. If you would like to support Collapse Chronicles, there are several ways to do just that. You can hit the Paypal Donate icon on the homepage, or send a Paypal donation through [email protected] If you would like to become a Patron of Collapse Chronicles, here is a link to my Patreon page: https://www.patreon.com/user?u=16077447 If you would like to send a check or money order to support this channel, you can email me at [email protected] Thank you
Views: 653 Collapse Chronicles
We learned last year that many of the effects of climate change are irreversible. Sea levels have been rising at a greater rate year after year, and the Intergovernmental Panel on Climate Change estimates they could rise by another meter or more by the end of this century. As National Geographic showed us in 2013, sea levels would rise by 216 feet if all the land ice on the planet were to melt. This would dramatically reshape the continents and drown many of the world's major cities. Science Insider tells you all you need to know about science: space, medicine, biotech, physiology, and more. Subscribe to our channel and visit us at: http://www.businessinsider.com/science Science Insider on Facebook: https://www.facebook.com/BusinessInsiderScience/ Science Insider on Instagram: https://www.instagram.com/science_insider/ Business Insider on Twitter: https://twitter.com/businessinsider Tech Insider on Twitter: https://twitter.com/techinsider
Views: 17272189 Science Insider
More information about artist - http://www.NickolayLamm.com Nickolay Lamm has released simulated images of how parts of Washington, D.C., Miami, and New York City would look if sea levels rose by 25 additional feet - a level deemed possible in the next centuries if current trends continue. Sea levels are probably rising faster now than they ever have in the past 3,000 years, say scientists, and the trend is expected to continue. In order to help people visual this problem, Nickolay Lamm with the website StorageFront.com created simulated images of how certain U.S. cities and landmarks would look with an additional 25 feet of sea level rise. The area around the National Mall in Washington, D.C., which includes the Smithsonian and other national museums, would be submerged, as would the entire base of the Jefferson Memorial. Meanwhile, Miami’s South Beach would disappear almost completely, with the trunks of numerous palm trees under water. To the north, the amount of exposed land in Manhattan, Brooklyn, and Jersey City would shrink significantly, and the grassy park below the Statue of Liberty would be gone. Lamm created these simulated maps and images based on data from Climate Central. He estimates that sea levels will likely rise by 5 feet in the next 100 to 300 years, 12 feet by around 2300, and 25 feet in the next centuries.
Views: 2393 GeoBeats News
Past sea level rise is not captured by models yet, in particular the response from ice sheets in Antarctica due to global warming. Projections therefore can often be regarded to potentially underestimate future sea level rise. For example, Overpeck et al. (2006), and Hansen (2007) suggest possibilities which could eventually lead to a nonlinear response from ice sheets - accelerating the current observed sea level rise. Projections assessed by the US National Research Council (2010, pages 243-250), including Overpeck et al. 2006 http://books.nap.edu/openbook.php?record_id=12782&page=243 James Hansen on Sea Level Rise (2007) http://iopscience.iop.org/1748-9326/2/2/024002 Sea level in the 5th IPCC report (Rahmstorf, 2013) http://www.realclimate.org/index.php/archives/2013/10/sea-level-in-the-5th-ipcc-report/ IPCC AR 2013 sea level rise discussion http://www.climatechange2013.org/images/uploads/WGIAR5_WGI-12Doc2b_FinalDraft_Chapter13.pdf Sea level rise map 6 meters NASA https://commons.wikimedia.org/wiki/File:6m_Sea_Level_Rise.jpg Music: The Kyoto Connection - The Way Of Waking Up (feat. Alan Watts) http://freemusicarchive.org/music/The_Kyoto_Connection/Wake_Up_1957/01_Intro_-_The_Way_Of_Waking_Up_feat_Alan_Watts Sea level rise https://en.wikipedia.org/wiki/Sea_level_rise Follow @http://facebook.com/ClimateState
Views: 9881 Climate State
A matter of inches might help solve a riddle scientists have been working on for years: why rising ocean levels don't match ice melt. Follow Sebastian Martinez: http://www.twitter.com/sebastiansings See more at http://www.newsy.com Sources: National Oceanic and Atmospheric Administration https://www.youtube.com/watch?v=D141ls6sRZw Pixabay http://pixabay.com/en/ocean-sky-sea-horizon-outdoor-316752/ Nature http://www.nature.com/nature/journal/vaop/ncurrent/pdf/nature14093.pdf The New York Times http://www.nytimes.com/2015/01/15/science/earth/new-research-may-solve-a-puzzle-in-sea-levels-rise.html?gwh=85D42C7E25782FD8A8516DF3A823E31B&gwt=pay&assetType=nyt_now Google https://www.google.com/maps/place/Lake+Superior/data=!4m2!3m1!1s0x4d45420eefc37861:0x9c77f74884d014b5?sa=X&ei=8BG4VJ6OCIO8ggTCwoBw&ved=0CIoBEPIBMA4 YouTube http://www.youtube.com/watch?v=9gynllG-F2A KQED http://www.youtube.com/watch?v=QcbN9SVkqYU Greenpeace https://www.youtube.com/watch?v=3IC9uoyF-2s Image via: Getty Images / Matt Cardy
Views: 979 Newsy Science
SACRAMENTO, CALIFORNIA — Researchers from the California Ocean Protection Council authority is warning that melting ice shelves in Antarctica could cause sea levels to rise, with the most dramatic increase expected in California. According to a report by the council’s Science Advisory Team, for every foot of global sea-level rise caused by the melting West Antarctic, sea levels will rise approximately 1.25 feet in the California coast. Researchers theorize that due to Earth’s rotation and gravitational pull, melting ice in Antarctica — particularly in the western portion — is pulled toward the California coast. This makes rising sea levels more dramatic in the region. In 2100, sea levels could rise as high as 6.9 feet in San Francisco and 7.1 feet in La Jolla. The council plans to hold a series of workshops and propose measures to address the danger of rising sea levels. -~-~~-~~~-~~-~- Please watch: "Crying dog breaks the internet’s heart — but this sad dog story has a happy ending" https://www.youtube.com/watch?v=4prKTN9bYQc -~-~~-~~~-~~-~-
Views: 7169 TomoNews US
In the next few years, many islands are going to disappear due to rising sea levels! Join Trace as he discusses 5 of them that will be gone in the next 30 years! Check out our friends at AllTime10s' video "10 Strange Uninhabited Islands": https://www.youtube.com/watch?v=WeUBDhgU4WA Read More: Scientists outline long-term sea-level rise in response to warming of planet http://oregonstate.edu/ua/ncs/archives/2013/jul/scientists-outline-long-term-sea-level-rise-response-warming-planet "A new study estimates that global sea levels will rise about 2.3 meters, or more than seven feet, over the next several thousand years for every degree (Celsius) the planet warms." Rising Seas http://www.nytimes.com/interactive/2014/03/27/world/climate-rising-seas.html?_r=0 "The low-lying islands of Kiribati, just a few feet above sea level, are on the front lines of climate change." Plagued by sea-level rise, Kiribati buys land in Fiji http://america.aljazeera.com/articles/2014/7/1/kiribati-climatechange.html "Pacific island nation estimates it will be completely submerged within 30 years, displacing more than 100,000 people." Funafuti http://en.wikipedia.org/wiki/Funafuti "Funafuti is an atoll on which the capital of the island nation of Tuvalu is located." Will Tuvalu Disappear Beneath the Sea? http://www.smithsonianmag.com/travel/will-tuvalu-disappear-beneath-the-sea-180940704/ "A thin white smile curves across the blank face of the South Pacific Ocean, more than a mile below. A little lower, the whiteness resolves into an arc of breakers, and the tiny turboprop heads straight for them." Venice Menace: Famed City is Sinking & Tilting http://www.livescience.com/19195-venice-sinking-slowly.html "Sea-level rise isn't the only thing that has Venice's famous canals rising ever-so-slightly every year: The city is also sinking, a new study shows, in contrast to previous studies that suggested the city's subsidence had stabilized." 10 Treasures We'll Lose as Sea Levels Rise http://science.howstuffworks.com/environmental/earth/oceanography/10-treasures-lose-sea-levels-rise.htm "Rising temperatures + melting glaciers = higher seas levels. With those surging waters comes the potential for lower-lying land areas around the globe to be washed out, according to climate scientists." Will Climate Change Swamp the Statue of Liberty and Ellis Island http://news.nationalgeographic.com/news/2013/12/131226-statue-liberty-ellis-island-climate-change-science-photos/ "On October 29, 2012, superstorm Sandy barreled toward New York City. Liberty and Ellis Islands, two relatively tiny pieces of land huddled together in the city's harbor, were dangerously exposed." 9 Popular Cities Losing War with Rising Seas http://news.discovery.com/earth/global-warming/cities-battling-sea-level-rise-130701.htm "The world's coastal cities are some of the most beautiful, culturally vibrant and heavily populated urban areas." Sydney Opera House and Statue of Liberty 'will be lost to sea level rise' http://www.theguardian.com/environment/2014/mar/05/sydney-opera-house-statue-liberty-sea-level-climate-change-unesco "Nearly one-fifth of world cultural heritage sites would be affected by global warming of a further 3C, scientists warn." ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Trace Dominguez on Twitter https://twitter.com/tracedominguez Tara Long on Twitter https://twitter.com/TaraLongest Laci Green on Twitter http://twitter.com/gogreen18 DNews on Facebook https://facebook.com/DiscoveryNews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com Download the TestTube App: http://testu.be/1ndmmMq
Views: 264168 Seeker
On June 12, 2018 renowned experts, Dr. Michael Mann, Dr. David Titley, Dr. Patrick Moore and Dr. Judith Curry met in Charleston, West Virginia to discuss climate change from varying perspectives. The panelists were asked to address two specific questions: To what extent is the use of fossil fuels affecting climate change? What can and should be done to offset those effects? This event was presented by Spilman Thomas & Battle, a full-service, super-regional law firm serving local, regional, national and international businesses. ©️2018 Spilman Thomas & Battle, PLLC.
Views: 98 spilmanlaw
Designer Martin Varjic has drawn a map that shows what the world will look like if all of the polar ice melts and the sea level swells 260 feet. Environmentalists often talk about the dire effects of melting polar caps and rising sea levels, but the projected consequences can at times seem a bit abstract. As a means of making the situation more concrete, graphic designer Martin Vargic has drawn a vision of the future using the long-established techniques of cartography. His map shows what the world will look like if all of the polar ice melts and the sea level swells 260 feet. Instantly noticeable is that the continents shrink quite a bit. Closer examination shows that along with the disappearance current coastlines, major urban areas will end up under water as well. London, New Orleans, Berlin and Amsterdam will be no more. Parts of Brazil will also be lost, along with chunks of Miami, and Washington D.C. Said Vargic his rendering is an attempt to bring "traditional cartography to a contemporary setting, while reminding us about the dangers of global warming and subsequent climate change." How likely is it that his vision will come to pass? According to National Geographic, if everything continues as it is today, very. In time, modern conditions could cause the average temperature on the planet to increase from 58 to 80 degrees Fahrenheit.
Views: 10894 GeoBeats News
New research suggests that some of the early data of sea level rise as a result of climate change may be skewed. The 1991 eruption of Mt. Pinatubo may have led to biased results, but researchers still believe sea levels could rise 20 feet by 2100. Read more: http://www.techinsider.io/ FACEBOOK: https://www.facebook.com/techinsider TWITTER: https://twitter.com/techinsider INSTAGRAM: https://instagram.com/tech_insider/ TUMBLR: http://techinsider.tumblr.com/
Views: 18871 Tech Insider
Climate change and rising sea levels mean the island nation of Kiribati in the South Pacific is at risk of disappearing into the sea. But the island’s inhabitants aren’t giving up. They are doing what they can to save their island from inundation. Can COP23 help make a difference? UN estimates indicate that Kiribati could disappear in just 30 or 40 years. That’s because the average elevation is less than two meters above sea level. And some of the knock-on effects of climate change have made the situation more difficult. Kiribati can hardly be surpassed in terms of charm and natural beauty. There are 33 atolls and one reef island – spread out over an area of 3.5 million square kilometers. All have white, sandy beaches and blue lagoons. Kiribati is the world’s largest state that consists exclusively of atolls. A local resident named Kaboua points to the empty, barren land around him and says, "There used to be a large village here with 70 families." But these days, this land is only accessible at low tide. At high tide, it's all under water. Kaboua says that sea levels are rising all the time, and swallowing up the land. That’s why many people here build walls made of stone and driftwood, or sand or rubbish. But these barriers won't stand up to the increasing number of storm surges. Others are trying to protect against coastal erosion by planting mangrove shrubs or small trees. But another local resident, Vasiti Tebamare, remains optimistic. She works for KiriCAN, an environmental organization. Vasiti says: "The industrialized countries -- the United States, China, and Europe -- use fossil fuels for their own ends. But what about us?" Kiribati's government has even bought land on an island in Fiji, so it can evacuate its people in an emergency. But Vasiti and most of the other residents don't want to leave. _______ 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/documentaries 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: 2491885 DW Documentary
Coastal cities across the world are at a high risk of flooding by the end of the century, according to the results of a shocking new study. Sea levels are set to rise by at least two feet (65cm) by 2100, more than twice as much as predicted by some models. Melting ice in Greenland and Antarctica is largely responsible for the trend, experts say, described by the team as a 'game changer' in the climate change debate. It could mean places as far flung as South Florida, Bangladesh, Shanghai and parts of Washington, D.C. being engulfed by rising waters. Scroll down for video The finding was made by a team of US researchers, including the University of Colorado. In the first analysis of its kind, they used twenty-five years of satellite data to show current climate models which predict sea levels will rise at an increasing rate are correct. They found that, since 1993, ocean waters have moved up the shore by an additional one millimetre (0.04 inches) per decade. That's on top of a three millimetre (0.1 inch) steady annual increase. This acceleration would means an additional millimetre sea rise per year for each of the coming decades. If the oceans continue to change at this pace, sea levels will rise by 65cm (two feet) by the end of the century. Models that assume the rate of increase remains constant predict a rise of of about 30cm (one foot). New Orleans could become an island guarded by levies and floods ravage parts of the East Coast of the US with far greater frequency. About the results study co-author Dr Gary Mitchum, associate dean and professor at the University of South Florida, said: 'I think this is a game-changer as far as the climate change discussion goes. 'For example, the Tampa Bay area has been identified as one of ten most vulnerable areas in the world to sea level rise and the increasing rate of rise is of great concern.' Rising concentrations of greenhouse gases in Earth's atmosphere increase the temperature of air and water, which causes sea level to rise in two ways. First, warmer water expands, and this thermal expansion of the oceans has contributed about half of the 7cm (2.7 inches) of global average sea level rise observed over the last 25 years Second, melting land ice flows into the ocean, also increasing sea level across the globe. The team looked at satellite altimeter measurements taken since 1992, including data taken from the current Jason-3 satellite mission. Episodes like volcanic eruptions can create variability in their measurements. The eruption of Mount Pinatubo in 1991 decreased the global average sea level just before the Topex/Poseidon satellite launch, for example. In addition, global sea level can fluctuate due to climate patterns such as El Niños and La Niñas, the opposing phases of the El Niño Southern Oscillation (Enso). These events influence ocean temperature and global rainfall patterns. Experts used climate models to account for the volcanic effects and other datasets to determine the Enso effects. This let them uncover the underlying sea-level rate and acceleration over the last quarter of a century. They used data from the Grace satellite gravity mission to determine that the acceleration is largely being driven by melting ice. The team also used tide gauge data to assess potential errors in the altimeter estimate. Tide gauge measurements are essential for determining the uncertainty in the global mean sea level (GMSL) acceleration estimate, according to the team. However, satellites give a better view of sea level rise, because samples are collected over the open ocean, rather than just along the coastline. 'This acceleration, driven mainly by accelerated melting in Greenland and Antarctica, has the potential to double the total sea level rise by 2100 as compared to projections that assume a constant rate,' added Steve Nerem, professor of aerospace engineering sciences at the University of Colorado, who led the study. 'And this is almost certainly a conservative estimate. Our extrapolation assumes that sea level continues to change in the future as it has over the last 25 years. 'Given the large changes we are seeing in the ice sheets today, that's not likely.' The full findings of the study were published in the journal Proceedings of the National Academy of Sciences.
Views: 56 Science Technology
CORRECTION: Sea level rise at the end of the last glaciation was 400 feet, not 200 feet. SOURCES: 1:48 "Recent Ice-Sheet Growth in the Interior of Greenland" Ola M. Johannessen et al, Science November 2005 2:10 "Recent Greenland Ice Mass Loss by Drainage System from Satellite Gravity Observations" -- S. B. Luthcke, et al., Science November 2006 2:12 "Melting of Greenland Ice Sheet Satellite Gravity Measurements Confirm Accelerated Melting of Greenland Ice Sheet" -- J. L. Chen, et al., Science 2006 3:19 "Satellite gravity measurements confirm accelerated melting of Greenland ice sheet" J. Chen et al., Science, 2006 3:22 "Recent Greenland Ice Mass Loss by Drainage System from Satellite Gravity Observations" -- Luthcke et al, Science, 2006 3:24 "Lower estimates of Antarctic sea level contribution from satellite gravimetry" King et al, Nature 2012 3:26 Recent Antarctic ice mass loss from radar interferometry and regional climate modelling" -- Rignot et al, 2008 3:28 "Recent Contributions of glaciers and ice caps to sea level rise from GRACE" 3:30 "A Reconciled Estimate of Ice-Sheet Mass Balance" Shepherd et al Science 2012 4:01 "Recent Contributions of glaciers and ice caps to sea level rise from GRACE" 4:24 "Toward prediction of environmental Arctic change" W Maslowski, JC Kinney, J Jakacki - Computing in Science 2007 5:25 "Kinematic Constraints on Glacier Contributions to 21st-Century Sea-Level Rise" -- WT Pfeffer et al., Science 2008 5:40 "Global sea level linked to global temperature" -- Martin Vermeer and Stefan Rahmstorf, PNAS 2009 6:10 Table adapted from "Ranking Port Cities with High Exposure and Vulnerability to Climate Extremes" -- R. J. Nicholls et al., OECD 2008 8:02 "Kinematic Constraints on Glacier Contributions to 21st-Century Sea-Level Rise" -- WT Pfeffer et al., Science 2008 8:57 "Climate: Observations, projections and Impacts" -- Met Office 2013. http://www.metoffice.gov.uk/climate-guide/science/uk/obs-projections-impacts 10:05 "Precipitation and its extremes in changed climates" -- T. Schneider and P. A. O'Gorman, Journal of Climate 2008 11:30 "Effects of climate change on global food production under SRES emissions and socio-economic scenarios" -- Parry et al, Global Environmental Change 2004 11:52 "Threats to Water Supplies in the Tropical Andes" Bradley et al., Science 2006 11:55 "Evidence for Upwelling of Corrosive "Acidified" Water onto the Continental Shelf" -- Richard A. Feely, Science 2008 12:01 "Coral Reefs: Present Problems and Future Concerns Resulting from Anthropogenic Disturbance" -- RH Richmond, American Zoologist 1993 12:06 "Global Warming and Coastal Erosion" -- Zhang et al., Climatic Change 12: 08 "Global response of terrestrial ecosystem structure and function to CO2 and climate change: results from six dynamic global vegetation models" -- Cramer et al., Global Change Biology 2001 12:25 "The Recent Increase in Atlantic Hurricane Activity: Causes and Implications" -- Goldenberg, Science 2001 12:34 "A link between reduced Barents-Kara sea ice and cold winter extremes over northern continents" Petoukhov, V., and V. A. Semenov, JOURNAL OF GEOPHYSICAL RESEARCH, Nov 2010 14:08 I backtracked this new "CAGW" label, and it seems to have started with author Michael Crichton in 2007, but was popularized in 2010 with an opinion piece in the Washington Post. 14:42 Table adapted from "Ranking Port Cities with High Exposure and Vulnerability to Climate Extremes" -- R. J. Nicholls et al., OECD 2008 15:07 "Projected impacts of climate change on marine fish and fisheries" Anne B. Hollowed 15:12 "Stern Review on the Economics of Climate Change" -- UK Government report, 2006 17:47 Someone queried my statement "the amount we've spent on developing the world's first nuclear fusion reactor is barely 2/3 the cost of the BP oil spill in the Gulf of Mexico." I don't have my notes with me so I can't give you my source for the $28 billion. So let's look at a couple of other ratios. According to the website of ITER (the Experimental Thermonuclear Experimental Reactor), if all the manufacturing is done in Europe the estimated cost of building ITER, supported by the United States, the European Union, India, Japan, China, Russia, South Korea, has been estimated at approximately $14.4 billion (at April 2016 exchange rates.) That's around a third the estimated cost of the BP oil spill in the Gulf of Mexico ($42 billion)." (SOURCE: http://www.iter.org/faq#Do_we_really_know_how_much_ITER_will_cost) "Based on the European evaluation, we can estimate the cost of ITER construction for the seven members at approximately EUR 13 billion, if all the manufacturing is done in Europe." ) Or, looking at it another way, the cost of building the National Ignition Facility -- a key research project into nuclear fusion -- was less that 10% of the cost of the BP oil spill.
Views: 190111 potholer54
Eric Rignot (NASA/JPL) one of the world's most prominent glaciologists, who is behind a landmark report revealing the unstoppable collapse of a large part of Antarctica, gave a lecture at Victoria University of Wellington in February 2017, on future sea level rise. Future sea-level rise from warming of polar ice sheets http://www.victoria.ac.nz/news/2017/02/future-sea-level-rise-from-warming-of-polar-ice-sheets This video has been edited to increase the video audio volume. Summary http://climatestate.com/wp-content/uploads/2017/04/Future-sea-level-rise-from-warming-of-the-polar-ice-sheets.jpg
Views: 20206 Climate State
Antarctica is losing ice three times faster than it was in 2007 as greenhouse gas emissions by human activity contribute to global warming. A study in Nature says that sea levels could rise between three and six feet by 2100, with Antarctica contributing at least six inches if its ice melt continues at the current rate. Dr. Benjamin Strauss, president and CEO of Climate Central, joins Hari Sreenivasan.
Views: 5470 PBS NewsHour
Antarctica is contributing an increasing amount to global sea level rise, according to new research published in Nature by an international team of scientists led by Professor Andrew Shepherd from Leeds’ School of Earth and Environment.
Views: 745 University of Leeds
Sea levels are rising. For many cities on the the eastern shores of the United States, the problem is existential. Subscribe to The Guardian ► http://is.gd/subscribeguardian We take a look at how Miami and Atlantic City are tackling climate change, and the challenges they face under a skeptical Trump administration that plans to cut funding for environmental programs. Become a Guardian supporter ► http://bit.ly/GDNmembers The Guardian ► https://www.theguardian.com Suggested videos: Battle for Mosul ► http://bit.ly/MosulDoc Radical Brownies ► http://bit.ly/RadicalBrowniesFilm Desert Fire ► http://bit.ly/DesertFire 6x9: experience solitary confinement ► http://bit.ly/6x9gdn Gun Nation ► http://bit.ly/GunNationDoc We Walk Together ► http://bit.ly/WeWalkTogetherFilm The last job on Earth ► http://bit.ly/LastJobOnEarth Patrick Stewart: the ECHR and us ► http://bit.ly/PatrickStewartS The epic journey of a refugee cat ► http://bit.ly/KunkuzCat Guardian playlists: Guardian Bertha Documentaries ► http://bit.ly/GuardianBertha In my opinion ► http://bit.ly/InMyOpinion Owen Jones meets ► http://bit.ly/CorbynJones US elections 2016 ► http://bit.ly/elections2016gdn Guardian Animations & Explanations ►http://is.gd/explainers Guardian Investigations ► http://is.gd/guardianinvestigations The Guardian's YouTube channels: Owen Jones talks ► http://bit.ly/subsowenjones Guardian Football ► http://is.gd/guardianfootball Guardian Science and Tech ► http://is.gd/guardiantech Guardian Culture ► http://is.gd/guardianculture Guardian Wires ► http://is.gd/guardianwires
Views: 93252 The Guardian
While New York City is taking aggressive action to prevent future catastrophes like Hurricane Sandy, other vulnerable cities, such as Charleston, South Carolina, are not tackling the threat of rising sea level and climate change with the same urgency. Special correspondent Jackie Judd reports. View the full story/transcript: http://www.pbs.org/newshour/bb/two-cities-two-different-responses-rising-sea-levels/#transcript
Views: 52299 PBS NewsHour
1000Frolly channel relies on your generosity and support to keep up the fight against the forces of pseudo-science. Please assist of you can; Patreon https://www.patreon.com/1000Frolly I expose the biggest Crock of the Century; the claim that there will be a big rise in sea levels caused by our CO2 emissions. References; Beenstock, M., Felsenstein, D., Frank, E., & Reingewertz, Y. (2015). Tide gauge location and the measurement of global sea level rise. Environmental and ecological statistics, 22(1), 179-206. Gouretski, V., Kennedy, J., Boyer, T., & Köhl, A. (2012). Consistent near‐surface ocean warming since 1900 in two largely independent observing networks. Geophysical Research Letters, 39(19). Holgate, S. (2007). On the decadal rates of sea level change during the twentieth century. Geophysical Research Letters, 34(1). Horton, B. P., Rahmstorf, S., Engelhart, S. E., & Kemp, A. C. (2014). Expert assessment of sea-level rise by AD 2100 and AD 2300. Quaternary science reviews, 84, 1-6. Sweet, W. V., Kopp, R. E., Weaver, C. P., Obeysekera, J., Horton, R. M., Thieler, E. R., & Zervas, C. (2012). Global and regional sea level rise scenarios for the United States. Ocean and Coastal Management. Team, C. W., Pachauri, R., & Meyer, L. (2014). IPCC, 2014: Climate Change 2014: Synthesis Report. Contribution of Working Groups I. II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. IPCC, Geneva, Switzerland, 151. Wöppelmann, G., Miguez, B. M., Bouin, M.-N., & Altamimi, Z. (2007). Geocentric sea-level trend estimates from GPS analyses at relevant tide gauges world-wide. Global and Planetary Change, 57(3), 396-406.
Views: 12928 1000frolly PhD
This presentation is an overview of the different effects climate change produces in different regions of the United States. In addition to discussing impacts already being experienced, the module presents information on how climate scientists usespecialized models and statistical techniques to estimate how regional climates are likely to change in the future. This material is available for non-commercial, non-promotional purposes only. For more information and similar learning materials, visit the MetEd website: http://www.meted.ucar.edu
Views: 19316 The COMET Program/MetEd
In one scenario in a recent study, sea levels could rise over 10 feet near the Golden State by century's end. Learn more about this story at www.newsy.com/68865/ Find more videos like this at www.newsy.com Follow Newsy on Facebook: www.facebook.com/newsyvideos Follow Newsy on Twitter: www.twitter.com/newsyvideos
Views: 775 Newsy
Sea level rise is a game of millimeters a year, but those millimeters add up to a huge amount of water entering the world's oceans. And the rising tide could eventually swamp cities around the globe. With tide gauges distributed sparsely around the planet, scientists have turned to satellites to provide a global picture of sea level since the early 1990s. New research published on May 11 in Nature Climate Change refines those satellite estimates and provides some good and bad news. The good news? Total sea level rise is lower than previous estimates. The bad news? Sea level rise rates are speeding up. http://feeds.mashable.com/~r/Mashable/~3/6dJq3J96-lU/ http://www.wochit.com This video was produced by Wochit using http://creator.wochit.com
Views: 172 Wochit News
Deborah Carlson of WCEL explains the consequences of sea level rise for Vancouver and what local actions are being taken to counter the threat Visit http://therealnews.com for more stories and help support our work by donating at http://therealnews.com/donate.
Views: 5439 The Real News Network
C43F. Cryospheric Contribution to Sea Level Rise: Current Estimates and Projections I - 2012 AGU Fall Meeting Abstracts: [C43F-01] A Reconciled Estimate of Ice Sheet Mass Balance http://abstractsearch.agu.org/meetings/2012/FM/C43F-01 [C43F-02] Irreversible mass loss from Canadian Arctic glaciers http://abstractsearch.agu.org/meetings/2012/FM/C43F-02 [C43F-03] Projections of 21st century contribution of Alaska glaciers to rising sea level http://abstractsearch.agu.org/meetings/2012/FM/C43F-03 [C43F-04] Greenland mass changes from 1960 to 2100: Hindcasting and forecasting with PISM and RACMO2/GR http://abstractsearch.agu.org/meetings/2012/FM/C43F-04 [C43F-05] The 2012 melting record and 21st century sea level rise projections for major drainage systems of the Greenland ice sheet http://abstractsearch.agu.org/meetings/2012/FM/C43F-05 [C43F-06] Comparative forecast simulations of the Greenland ice-sheet using Elmer/Ice and GRISLI http://abstractsearch.agu.org/meetings/2012/FM/C43F-06 [C43F-07] Contribution of the surface mass balance of the Greenland ice sheet to 21st-century sea level rise as simulated by the global climate model CESM http://abstractsearch.agu.org/meetings/2012/FM/C43F-07 [C43F-08] Ice-Sheet Model Sensitivities to Environmental Forcing and Their Use in Projecting Future Sea-Level (The SeaRISE Project) http://abstractsearch.agu.org/meetings/2012/FM/C43F-08 [C43F-09] Future response of the Greenland and Antarctic ice sheets: the SeaRISE experiments http://abstractsearch.agu.org/meetings/2012/FM/C43F-09 [C43F-10] Snowfall increases future ice discharge from Antarctica http://abstractsearch.agu.org/meetings/2012/FM/C43F-10
Views: 414 AGU
One idea likely to be both controversial and expensive: demolishing properties and returning developed areas back to nature. http://www.miamiherald.com/news/local/community/miami-dade/article155213369.html B-Roll: Miami Sea Level Flooding https://www.youtube.com/watch?v=A4DIkVDIDS0 Sea level rise Key West https://twitter.com/ed_hawkins/status/872749253185220608 The Perfect Tide: Sea Level and the Future of South Florida https://www.youtube.com/watch?v=qRGuQKv4gPU U.S. GDP by State https://www.bea.gov/iTable/drilldown.cfm?reqid=70&stepnum=11&AreaTypeKeyGdp=1&GeoFipsGdp=XX&ClassKeyGdp=naics&ComponentKey=200&IndustryKey=1&YearGdp=2016&YearGdpBegin=-1&YearGdpEnd=-1&UnitOfMeasureKeyGdp=levels&RankKeyGdp=1&Drill=1&nRange=5 Sound effects http://Soundmorph.com Expert explains Future Sea Level Rise (2017) https://www.youtube.com/watch?v=AAPPq43iRLs Teaser image Key West via Wikipedia Patreon http://patreon.com/ClimateState Paypal http://climatestate.com/support-future-climate-change-coverage
Views: 16786 Climate State
Mass loss from the Greenland and Antarctic ice sheets is accelerating, and ice sheets are expected to be the dominant contributor to global sea level rise in the next several decades. Although advanced ice sheet models are now included in Earth system models, projections of future sea level rise remain very uncertain, with high-end estimates of more than 1 meter by 2100. In this NCAR Explorer Series lecture, NCAR scientist William Lipscomb discusses the challenges of simulating ice sheets and their interactions with the ocean and atmosphere using the Community Earth System Model. This video covers the basics of ice sheet modeling and the likelihood of abrupt sea level rise.
Views: 49 UCARConnect
Show your support, It takes just $1. PayPal [email protected] Earth's mantle affects long-term sea-level rise estimates. http://asnews.syr.edu/newsevents_2013/releases/rob_moucha_shoreline.html "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use." § 107.Limitations on exclusive rights: Fair use Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include — (1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes; (2) the nature of the copyrighted work; (3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and (4) the effect of the use upon the potential market for or value of the copyrighted work. FAIR USE NOTICE: These pages/video may contain copyrighted (© ) material the use of which has not always been specifically authorized by the copyright owner. Such material is made available to advance understanding of ecological, POLITICAL, HUMAN RIGHTS, economic, DEMOCRACY, scientific, MORAL, ETHICAL, and SOCIAL JUSTICE ISSUES, etc. It is believed that this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit to those who have expressed a prior general interest in receiving similar information for research and educational
Views: 1026 Marygreeley1954
Millions of Americans live in places where it's too late to slow the threat of rising sea levels, a new study warns, and researchers are hoping those findings will serve as a call to action for cities that can still be saved by cutting carbon emissions... Read More At: http://www.huffingtonpost.com/entry/us-cities-sea-level-threats_561d338fe4b0c5a1ce60a45c Clip from the Thursday, October 15th 2015 edition of The Kyle Kulinski Show, which airs live on Blog Talk Radio and Secular Talk Radio monday - friday 4-6pm Eastern. Check out our website - and become a member - at: http://www.SecularTalkRadio.com Listen to the Live Show or On Demand archive at: http://www.blogtalkradio.com/kylekulinski Follow on Twitter: http://www.twitter.com/kylekulinski Like on Facebook: http://www.facebook.com/SecularTalk Friends Of SecularTalk: http://www.facebook.com/beastofreason AMAZON LINK: (Bookmark this link to support the show for free!!!) http://www.amazon.com/?tag=seculacom-20
Views: 46122 Secular Talk
A trillion-dollar coastal property real estate bubble could burst as sea level rise begins to pose an imminent threat, says ClimateProgress.org's Joseph Romm Help support The Real News by making a donation today: http://therealnews.com/donate
Views: 16038 The Real News Network
Try Dashlane here: http://dashlane.com/simonclark Get 10% off now with my promo code: simonclark ! In this video I answer the question: 'isn't climate change supposed to have risen sea levels by now?' by looking at one dataset in some detail, and reviewing the scientific literature. Also: Kevin Costner's Waterworld. My video on stopping climate change: https://www.youtube.com/watch?v=GkbuV_a-rvs This video was light on the potential impacts of sea level rise. I wanted to focus specifically on the perception that sea levels have not changed, and spend time on the data. If you’re interested in the potential impacts then https://www.ipcc.ch/site/assets/uploads/2018/02/ar5_wgII_spm_en.pdf is a must read. Anthropogenic climate change (AGW) is a fickle bit of science, and like much of environmental science sometimes changes on (relatively) long timescales and global extent can hide in plain sight. That seems to be the case with sea level rise. The data is very clear: sea levels have been rising faster and faster over the past century, and this is not caused by natural variability. Humanity's carbon emissions are radiatively forcing the planet, causing net warming and so thermal expansion of the oceans and melting of ice sheets. It appears that this is going to become more and more painfully obvious as this century wears on, and so the sooner we take action the better. REFERENCES/FOOTNOTES (1) Church and White (2011) https://link.springer.com/article/10.1007/s10712-011-9119-1 (2) This figure from https://commons.wikimedia.org/wiki/File:Post-Glacial_Sea_Level.png, created by Robert Rohde based on data from Fleming et al. 1998, Fleming 2000, and Milne et al. 2005 (3) There are many excellent resources online about Milankovitch cycles. In this instance, the wiki is a good introduction: https://en.wikipedia.org/wiki/Milankovitch_cycles (4) Gross scale annual reconstruction of Greenland temperatures using data from Buizert et al (2018) https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017GL075601. The enormous anomalous warming circa 15kya is the Bølling-Allerød interstadial, likely caused by changes in the AMOC https://en.wikipedia.org/wiki/B%C3%B8lling-Aller%C3%B8d_warming (5) This figure taken from https://www.arcgis.com/home/webmap/viewer.html?webmap=f1e7378b962d42168fdefec3b6eb8b5f (6) This rate calculated based on the year to year (backward step) finite difference gradient of annual average data from (1), averaged over 30 years. (7) See http://lasp.colorado.edu/home/sorce/data/tsi-data/. 100*(~1/1370) is less than 0.1%) (8) Current data https://scripps.ucsd.edu/programs/keelingcurve/. Yes, of course, this rise is caused by humans: https://scripps.ucsd.edu/programs/keelingcurve/2018/09/19/is-the-current-rise-in-co2-definitely-caused-by-human-activities/ (9) https://www.engineeringtoolbox.com/volumetric-temperature-expansion-d_315.html (10) IPCC AR5 WG1 chapter 13 https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapter13_FINAL.pdf (11) Though sometimes the timeframe of long term predictions is unclear, e.g. https://www.nature.com/articles/271321a0, leading to hyperbolic interpretations. (12) This figure taken from https://blogs.egu.eu/divisions/gd/2017/09/13/modern-day-sea-level-rise/, which is a recommended read. (13) https://science2017.globalchange.gov/chapter/12/ (14) https://www.theguardian.com/environment/2016/jun/14/first-case-emerges-of-mammal-species-wiped-out-by-human-induced-climate-change ---------- II ---------- You can support the channel by donating at http://www.patreon.com/simonoxfphys Check out my website! https://www.simonoxfphys.com/ ---------- II ---------- My twitter - http://www.twitter.com/simonoxfphys My facebook - http://www.facebook.com/youtubesimon My insta - http://www.instagram.com/simonoxfphys My goodreads - http://www.goodreads.com/simonoxfphys ---------- II ---------- Music by Epidemic Sound: http://epidemicsound.com Stock footage provided by Bigstock: http://bit.ly/bigstock-videofreetrial Huge thanks to my supporters on Patreon: Alastair Fortune, Anne Smith, Ben McMurtry, bitreign33, Caitlin Louise, Charles Bray, Dan Hanvey, David Efird, Ethan Fuller, Filip Kermit Prick, James Bridges, jawad alalasi, Jay Wright, Jia Xin Peng, Jonathan Trimble, Julian Guggenberger, Kendall Hendrix, Kendra Johnson, Kodzo, Lachlan Woods, Leighton Mackenzie, Liam, Louis Gillet, Mark Anthony Magro, Martin Hermes, Mat Allen, Matthias Loos, Michael Phillips, Mike Wooldridge, Omar Miranda, Paul Everitt, Rory Healy, Ryke Allen, Scott Cassidy, Thusto, Tiarna Pepall, Tim Boxall, Wendover Productions
Views: 213663 Simon Clark
According to the National Oceanic Atmospheric Administration (NOAA), practically all of our Bay Area beaches could be under water by the end of the century; estimates have the sea levels around Florida rising by about 5 feet. The effects of rising sea levels are already being seen in places like St. Pete Beach.
Views: 2646 ABC Action News
In this short video, we meet NCAR scientist Dr. William (Bill) Lipscomb's as he discusses his NCAR Explorer Series talk "Ice Sheets and Sea Level Rise." Mass loss from the Greenland and Antarctic ice sheets is accelerating, and ice sheets are expected to be the dominant contributor to global sea level rise in the next several decades. Although advanced ice sheet models are now included in Earth system models, projections of future sea level rise remain very uncertain, with high-end estimates of more than 1 meter by 2100. Watch the full lecture to learn more about NCAR research on polar ice sheets and sea level rise. https://www.youtube.com/watch?v=W3c2iyv5MeM
Views: 14 UCARConnect
Michael Oppenheimer, Albert G. Milbank Professor of Geosciences and International Affairs, Woodrow Wilson School. Director, Center for Science Technology and Environmental Policy Tuesday, September 15 at 12:30 PM - Guyot Hall Room 10 Structural uncertainty in models presents a longstanding obstacle to estimating future sea level rise. The model-based range of projections is often used to characterize uncertainty. However, this approach is inadequate when applied to sea level rise due to the known deficiencies of ice sheet models in combination with the growing significance of the ice sheet contribution. In its Fifth Assessment Report, the IPCC extended uncertainty analysis for sea level rise by applying ad hoc expert judgments about the possible effect of such model deficiencies, an approach the IPCC has also used in assessing uncertainty for climate sensitivity. Oppenheimer and colleagues propose a new approach utilizing expert judgment that combines an experience-weighted version of formalized expert elicitation with probabilistic inversion of parameterized physical models.
Views: 135 PEI PU
90 seconds on ... Although the melting of both types of ice affects climate change, only one is related to sea level rise. (Air date: Nov 14 2014)
Views: 861 YaleClimateConnections
'You can't legislate the ocean, and you can't legislate storms.' -- East Carolina University geologist Stan Riggs The state General Assembly's Replacement House Bill 819 would rule that scientists are not allowed to accurately predict sea-level rise. Using only legal calculations, the sea level will now rise eight inches by the end of the century--- not the forty that scientists estimate. North Caroline Sea Level Rise Bill 819: www.nccoast.org/uploads/documents/CRO/2012-5/SLR-bill.pdf Sea Level Bill Would Allow North Carolina to Stick Its Head in the Sand: http://www.usnews.com/news/articles/2012/06/01/sea-level-bill-would-allow-north-carolina-to-stick-its-head-in-the-sand IPCC Summary for Policy Makers (SPM), Sea Level Rise Projections, year 2007: http://warmwagers.org/SPM2feb07.pdf Sea level rise likely to be greater than IPCC Assessment Report Four predicted: http://www.liv.ac.uk/climate/documents/Symposium2011/svetlana.pdf A Semi-Empirical Approach to Projecting Future Sea-Level Rise: http://www.sciencemag.org/content/315/5810/368.short Download global sea level reconstruction data: http://www.pol.ac.uk/home/staff/?user=JevreSvet
Views: 3207 Desertphile
Altimetry has been measuring the sea levels, over all the oceans since the early 1990s. By averaging these levels over the oceans, and looking at the variations on the whole period, one can estimate the global sea level rise with an accuracy of 0.5 mm/yr. This video is part of the Copernicus Oceans from Space Massive Open Online Course which is freely available here http://www.oceansfromspace.org
Views: 83 EUMETSAT
Fair Use: Educational
Views: 1077 Understanding Climate Change
Jim Hansen gave this interview November 9, 2017 at COP23 the UN Climate Conference in Bonn, Germany. Source https://www.facebook.com/unitednations/videos/vb.54779960819/10155962970985820 Related Eemian https://en.wikipedia.org/wiki/Eemian
Views: 6491 Climate State
This past July, in a Congressional hearing on “The Status and Outlook for U.S. and North American Energy and Resource Security,” retired Marine Brigadier General Stephen A. Cheney offered a dire warning for many current military bases in coastal locations. “From the tactical side our bases and stations on the coast are going underwater. Norfolk [in Virginia] is the prime example. It’s closed dozens of times a year now because of flooding both from rain and sea level rise,” Cheney explained. “We’re going to have to talk about relocation of our bases and stations that are on the coast.” Cheney also made it clear that he believes in climate change. “Climate change is already affecting security both at home and around the world, so we must make sure that we take the greenhouse gas emissions from energy into account, lest we trade increased energy security today for a warmer, more unstable world in the future.” Though climate science denial is the rule in the White House, some Republicans who represent coastal districts have been swayed by the recurring floods. Representative Carlos Curbelo (R-FL) represents southern Florida, where the region's regular flooding has him convinced that climate change is happening now. “Sea level rise and the risk of severe flooding are a reality for communities across the country,” Curbelo said in a statement in response to Trump rolling back the regulation. “This Executive Order is not fiscally conservative, it's irresponsible, and it will lead to taxpayer dollars being wasted on projects that may not be built to endure the flooding we are already seeing and know is only going to get worse.” The draft climate report recently published by The New York Times estimates that sea level rise of 4 to 7 inches is “very likely” by 2030. This would make a noticeable difference in southern Florida. The same draft report estimates a potential for up to 8 feet of sea level rise by 2100. That would eliminate a lot of Rep. Curbelo’s district. The city of Miami has been very proactive in dealing with the very real issue of sea level rise and is spending approximately a half billion dollars on new pumps to address flooding. Despite this investment, a recent heavy rain storm, combined with high tides, left streets flooded. The Washington Post reported it as an “absurd” amount of rainfall. However, similar “absurd” rainfall events have happened recently across the country, including one that flooded New Orleans — another city staring down the reality of sea level rise. As the scientific evidence continues to warn us of devastating sea level rise and the military counsels us that coastal flooding is shutting down naval bases, it doesn’t seem like many people — including the U.S. President — are taking it seriously. Tangier Island in Chesapeake Bay sits on the leading edge of this issue. Bay waters have steadily eroded away the land on which this small community has lived for hundreds of years. Since the 1850s Tangier has reportedly shrunk in size by about two-thirds. The Army Corps of Engineers has estimated that the island might have as little as 25 years left. But the islanders famously don’t believe in sea level rise. And the President has told them not to worry about a thing. Residents of Tangier are pretty confident that erosion, not climate change, is the cause of their woes, as island resident Lonnie Miller explained to Public Radio International. “So are we going to get more street tides, tides on the street?” Miller asked “Yes. But is it global warming? No.” This “head in the rapidly washing away sand” approach has opened up the residents of Tangier Island to ridicule from some — but aren’t they just doing what much of the rest of the country is doing? Asking for a wall to keep the ocean at bay while not acknowledging that the ocean is rising? Perhaps not surprisingly, the mayor of Tangier Island is a Trump supporter … but not scientist. “I’m not a scientist, but I’m a keen observer,” Mayor Eskridge said. “If sea-level rise is occurring, why am I not seeing signs of it?” His island is literally being washed away by sea level rise and he can’t see any signs of it. And yet while he can’t see signs of sea level rise, he is asking for the government to pay for engineering solutions to protect his island — from sea level rise. David Schulte, a marine biologist with the Army Corps of Engineers, explained the situation to The New York Times last year, saying,“The Outer Banks, the Delmarva Peninsula, Long Island, the Jersey Shore — they’re in the same boat. It’s going to just take a little longer for them to get to where Tangier is now.” Learn more: https://www.desmogblog.com/2017/08/24/retired-general-our-bases-coast-going-underwater-sea-level-rise
Views: 767 DeSmog Blog
Scientific Discipline: Cryosphere Speaker: Eric Rignot (NASA Jet Propulsion Laboratory) Abstract Modern views of ice sheets provided by satellites, airborne surveys, in situ data and paleoclimate records while transformative of glaciology have not fundamentally changed concerns about ice sheet stability and collapse that emerged in the 1970's. Motivated by the desire to learn more about ice sheets using new technologies, we stumbled on an unexplored field of science and witnessed surprising changes before realizing that most were coming too fast, soon and large. Ice sheets are integrant part of the Earth system; they interact vigorously with the atmosphere and the oceans, yet most of this interaction is not part of current global climate models. Since we have never witnessed the collapse of a marine ice sheet, observations and exploration remain critical sentinels. At present, these observations suggest that Antarctica and Greenland have been launched into a path of multi-meter sea level rise caused by rapid climate warming. While the current loss of ice sheet mass to the ocean remains a trickle, every mm of sea level change will take centuries of climate reversal to get back, several major marine-terminating sectors have been pushed out of equilibrium, and ice shelves are irremediably being lost. As glaciers retreat from their salty, warm, oceanic margins, they will melt away and retreat slower, but concerns remain about sea level change from vastly marine-based sectors: 2-m sea level equivalent in Greenland and 23-m in Antarctica. Significant changes affect 2/4 marine-based sectors in Greenland - Jakobshavn Isbræ. and the northeast stream - with Petermann Gl. not far behind. Major changes have affected the Amundsen Sea sector of West Antarctica since the 1980s. Smaller yet significant changes affect the marine-based Wilkes Land sector of East Antarctica, a reminder that not all marine-based ice is in West Antarctica. Major advances in reducing uncertainties in sea level projections will require massive, interdisciplinary efforts that are not currently in place but are getting there. Projection scenarios are overwhelmingly conservative, pushed up by observations, awaiting more detailed knowledge of ocean circulation, winds, ice-ocean interaction, and mechanics of rapid ice fracture, not to mention the mere definition of static boundaries (ice thickness and sea floor bathymetry). https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/60094 Related The John F. Nye Lecture http://cryosphere.agu.org/nye-lecture-series/
Views: 4766 Climate State