Sea ice was thinner than normal to begin with in parts of the Southern Hemisphere in 2021. Researchers have long struggled to explain the unusual behavior of ice floating in the ocean around. We have some sort of overarching pattern in there which is being driven by changes in the atmosphere and the ocean.. Those gases bring the Earth from 0 deg F to the temperatures that allow us to survive. By continuing to use this site, you accept this policy. Man will not cause the earth to disintegrate. Lets address that question first. Increasing greenhouse gas concentrations is that explanation. Sign up to receive our latest reporting on climate change, energy and environmental justice, sent directly to your inbox. This relationship is still true today. J. C. Comiso, C. L. Parkinson, T. Markus, D. J. Cavalieri and R. Gersten. They still wont discuss the very active Gakkel volcanic ridge below the North Pole (1,100 miles long, that adds heat and chemically charged fluid flows loaded with CO2 and methane gas) to the sea water below the North Pole sea ice. When someone asks you to consider the impacts of climate change, what do you think of? From 2003-2008, this number decreased to 82 billion tons [1]. Some glaciers are beginning to lose ice at faster rates. East Antarctica's Conger ice shelfa floating platform the size of Romebroke off the continent on March 15, 2022. Since the late 1970s, the Arctic has lost an average of 20,800 square miles of sea ice per year, while the Antarctic has gained an annual average of 7,300 square miles. In fact, after Katrina and Wilma in 05, we didnt have a category 3+ hit the USA in 14 years. A RAdio Detection And Ranging (radar) device emits radio waves that then bounce back once they hit some sort of physical barrier such as a big rock. Yes this was one year, but this was not supposed to happen. Author here. http://www.nasa.gov/feature/goddard/nasa-study-mass-gains-of-antarctic-ice-sheet-greater-than-losses. Study: Mass gains of Antarctic ice sheet greater than losses This article on NASAs website explains their ICASat measurements and includes a brief explanation of ICASat-2 in the last paragraph: I dont believe any of this claptrap from laser satellites or proving the existence of ice on some continent were just expected to believe exists even though no one has ever actually gone to it. The Arctic, on the other hand, has lost about 20,800 square miles of ice each year in that same period [10]. Holly Shaftel In regards to the sources you provide, they appear to largely quote claims made by a single scientist or a news media outlet. Jacqueline Ruttimann Nature (2006) . According to the authors of the study, the ice loss and ice gain have different causes. While there are some subtleties to the data, one clear trend emerges: the more CO2 there is in the air, the hotter our planet becomes. Between 2012 to 2014, it reached record-high extents each year during the winter. There is also some longer-term variation in solar activity, though, which leads me to another point you made. The answer is probably thousands of years, if ever. That melting phenomenon is expected to lead to significant, unavoidable sea rise over centuries. Jordan Wilkerson is a third year graduate student in the Department of Chemistry at Harvard University. Can you reference the scientific data from 50,000 years ago, please? That leads to stratification, which leads to an increased formation of sea ice, because its effectively shielded [by snow], he said. Sea ice extent is the integral sum of the areas of all grid cells with at least 15% ice concentration, while sea ice area is the integral sum of the product of ice concentration and area of all grid cells with at least 15% ice concentration. How does RADAR Work? Nice points. Using this insight, the NASA team concluded the culprit behind the net ice gain is East Antarctica. Antarctic sea ice hit a stunning record-low minimum at the end of February, dropping below 772,000 square miles for the first time since satellites began observing the southern continent more than 40 years ago. (2013) https://www.youtube.com/watch?v=ywDE57CtaTM, [3] Howard, Brian Clark. In the new study, Son Nghiem, a researcher with NASAs Jet Propulsion Laboratory, evaluated satellite data to zero in on an answer. So when you factor in stable sea ice extent, a Greenland ice sheet that has grown, and billions of net tons added to the Antarctic, it seems to me that sea level change should be negligible or falling. When I said largely dictates, I didnt mean to suggest our atmosphere is the largest contributor to temperature. Hello, Mitch! I appreciate that discussing the past 5 years of sea ice extent is interesting. Why is Antarctica's Ice Sheet Growing in a Warming World? Discover world-changing science. We dont have really long records in this region, which makes it difficult, Arblaster said, adding that four decades actually represented a small window of time. So we marked high tide and low tide on the pickings in 92. The Thwaites Glacier in Antarctica is pictured in this undated photo. Given that academics have invested their entire reputations and emotional well being in man-made global warming being true, I expect many more trivial discussions over the next 10 years about whether snow pack is interfering with Lidar measurements etc as a way to avoid uncomfortable truth facing. good work with the article. The processes of ice formation are completely different. Antarctic sea ice is shrinking rapidly after decades of growth E&E News provides essential news for energy and environment professionals. A significant new studythe first of its kindshows that the nutrients found in walnuts, seeds, and certain types of seafood can reduce inflammation and improve declining lung function. Is it an existential threat? Figure 4: Color-coded animation displaying the last 2 weeks of the daily sea ice concentrations in the Northern Hemisphere. Senior Producer: The West Antarctic Ice Sheet and Long Term Climate Policy. In the early 20th century, universities used these tactics to ensure their students were predominantly Protestant. The study - by an organization not hitherto noted for playing down environmental scares - will come as a major . After decades of gradual increases, Antarctic sea ice is now decreasing faster than that in the Arctic, according to new research based on 40 years' worth of satellite data. So goes the liturgical chanting of the devout AGW acolytes. Temps keep rising and the Earth gets hotter, because of rising levels of CO2. How is climate change impacting your everyday life? Sea levels have been rising. This is a fair question. I first want to respond to your comment, it seems to that sea level change should be negligible or falling. This is actually not the case. At the same time, they said its important to remember the big differences between the poles. I do think its useful to talk about how we know climate change is happening. Antarctica is shrinking : Nature News The sea ice cover is one of the key components of the polar climate system. Unfortunately, the same cannot be said for North America. Temps keep going lower and the Earth gets colder, because of rising CO2. Earth has been shedding sea ice at an average annual rate of 35,000 square kilometers (13,500 square miles) since 1979the equivalent of losing an area of sea ice larger than the state of Maryland every year. NASA discusses water vapor being the most dominant greenhouse gas on their website alongside their discussion of man-made climate change: https://climate.nasa.gov/causes/. This is according to satellite data you can view on NASAs website. It comes down over the Antarctic Ocean over the sea ice zone. Antarctica is growing not shrinking, according to the latest study from NASA. American Geophysical Union, which has around 60,000 members, also accepts this. Its thicker and rougherit forms a great wall that protects the ice inside, so the internal ice opens up, stretches out. But the question of how climate change is interacting with natural variability is very much a question that we need to grapple with. Scientists concluded in the Journal of Glaciology that the loss of glacier mass in Antarcticas western region is being offset by thickening of glaciers on the continents eastern interior, which has experienced increased snowfall. When the ice age ended, the planet overall became warmer. Since around 550 AD, the late-summer Arctic sea ice extent has been estimated to be between 9-10 million square km until the last 20 years: Most of them are rhetoric questions but feel free to answer. Never have so many claimed so much was going to happen without A SINGLE CLAIM of doom coming true. Every day or once a week, our original stories and digest of the web's top headlines deliver the full story, for free. You have this mechanism where the winds expand the ice out as far as the wind will blow it, Meehl said. Significance A newly completed 40-y record of satellite observations is used to quantify changes in Antarctic sea ice coverage since the late 1970s. We deliver climate news to your inbox like nobody else. (**) I put that word in quotation marks because of the deliberate fraudulent creating of phony past proxy data by Mann, Jones, et. Now, a new study by a team of NASA climate scientists has sparked controversy by reporting that Antarctica is actually gaining ice.. The different shades of gray over land indicate the land elevation with the lightest gray being the highest elevation. I was going to say you are ignorant, but that not accurate. How was this research team able to determine changes in the amount of ice each year? Even if that statement is accurate (I have my doubts, but not the time to research those numbers right now), I wonder why you and other AGW True Believers fail to mention the discovery of a long, deep and very active volcanic ridge below the North Pole? Its always there, but its sometimes stronger and sometimes weaker depending on other climate conditions. These people did a very nice job on this and it helped me learn a lot more and get a good grade on a geography essay. Are they higher or lower than the 82 billion tons annual average from 2003-2008? the Antarctic is shrinking. The findings are based on satellite readings of Antarctic sea ice movement and thickness, as well as new, detailed interpretations of charts showing the shape of the sea bottom around Antarctica. Gravity Recovery and Climate Experiment Follow-On (GRACE-FO), This website is produced by the Earth Science Communications Team at, Site Owner: Thanks for your comment. Does all of your science indicate big bang or planned existence? Meltwater coming from these ice sheets is responsible for about one-third of the global average rise in sea level since 1993. Temperature elevations over the past century match well with the rising CO2 levels since the Industrial Revolution, Please be respectful of copyright. The big melt Antarctica is twice as large as Australia and harbours 90% of Earth's ice. Other researchers say the shifting levels of sea ice could represent natural climate patterns. In fact, long-term solar activity has been stagnating (of course, the 11-year Sun Spot Cycle still causes variation), yet global temperatures have been rising for decades. Its the latest event in a puzzling trajectory for Southern Ocean sea ice. It seems you may be worshiping a false god, and it will take time to come to grips with that. Yes, it is. Thats in stark contrast to the trend at the other end of the world, where Arctic sea ice has been swiftly declining for decades in response to global warming. It has been a focus of attention in recent years, largely because of a strong decrease in the Arctic sea ice cover and modeling results that indicate that global warming could be amplified in the Arctic on account of ice-albedo feedback. This is according to a research study conducted by a NASA team and published in Journal of Glaciology in October 2015 [1]. We take a fresh look. You cannot prove cause and effect, if the preceding correlation is NEGATIVE most of the time. We have more snow in the Antarctic, which speeds ice formation (by pushing thin ice underwater) and protects the ice from melting, he said. What will be their next argument to support AGW theory? Everybody's Doing It With Miss Lolly Podcast, San Diego's camping ban takes effect this weekend, Indigenous athletes are reviving an ancient sport in San Diego, Ocean Beach neighborhood food pantry, like others in San Diego, is struggling, Rent control will be on the ballot in California next year, Kaiser health care workers picket over working conditions, patient care, Trump charged with additional counts in Mar-a-Lago documents case, Matt Araiza files defamation lawsuit against SDSU gang rape accuser, Q&A: District 4 Supervisor candidate Janessa Goldbeck is 'ready to hit the ground running', Q&A: District 4 County Supervisor candidate Amy Reichert wants to fix a 'broken' system, Q&A: District 4 Supervisor candidate Monica Montgomery Steppe says 'accountability is key'. The dashed vertical line indicates the date of the latest plotted and mapped data. NASA Study: Mass Gains of Antarctic Ice Sheet Greater than Losses SIGN UP FOR THE MACH NEWSLETTER AND FOLLOW NBC NEWS MACH ON TWITTER, FACEBOOK, AND INSTAGRAM. Using this, they were able to determine the ice trend by measuring the changes in surface height over time. Climatic Change. The global minimum ice extent occurs in February, as does the Antarctic minimum extent. Our #1 newsletter delivers the weeks climate and energy news our original stories and top headlines from around the web. Very interesting article. Claire Parkinson has been studying polar sea ice for about four decades. The recovery of the infamous Antarctic ozone hole, which has been gradually healing for the last three decades, may have also had a hand in things. From 1979 to 1996, the ice loss was 21,500 square kilometers (8,300 square miles) per year. Dan Gearinos habit-forming weekly take on how to understand the energy transformation reshaping our world. A new survey of satellite data finds Antarctica has lost massive amounts of ice over the past few decades. And if more moisture is in the atmosphere and increasing snow over the continent as a whole, then that would account for the increase in the greater eastern area. Antarctica is losing ice mass (melting) at an average rate of about 150 billion tons per year, and Greenland is losing about 270 billion tons per year, adding to sea level rise. We have been living in a man-made environment indoors since air conditioning. The Antarctic has gained about 7,300 square miles of ice each year since the late 1970s. It appears it was in concert with a large earthquake swarm, which may, in turn, be associated with the Earths changing magnetic field. No wonder those models have always been wrong in their predictions. They are now forecasting one of the coldest and most snow-bound winters in the UK. One of the reasons people care about sea ice decreases is because sea ice is highly reflective, whereas the liquid ocean is very absorptive, Parkinson said. Looking at the temperature anomaly graph by NOAA, you can see its not really until after 1950 that you start seeing noticeable changes in globally averaged temperature: The satellite readings show that as sea ice forms early in the season, wind blowing off the cold Antarctic ice cap pushes it offshore and northward. http://climate.nasa.gov/scientific-consensus/, [5] The Carbon Dioxide Greenhouse Effect. This past September, at the end of the Southern Hemisphere's winter, the extent of Antarctica's sea ice reached 19.51 million square kilometers, breaking a 35-year record that dated back to . Seasonal cycle of Southern Hemisphere sea ice extents (a) and areas (b), given as daily averages, for the years 2012 through 2023. The earth was significantly warmer in the past (Roman times and the MWP) when the Vikings had prosperous farms in areas of Greenland, that are now under many feet of ice. Hint: theyre concerned, https://www.sciencemag.org/news/2019/03/us-senate-republicans-hold-rare-climate-hearing-and-more-might-be-coming. Copyright 2022. Thats the first question. Chlorofluorcarbons were phased out as part of the 1987 Montreal Protocol, helping restore ozone levels and presumably cooling the ocean and helping raise levels of Antarctic sea ice. It also began melting earlier than usual at the start of the Antarctic spring in September. When the education system fails to such a degree, then we cannot really have democracy. Features Despite Antarctic Gains, Global Sea Ice Is Shrinking By Mike Carlowicz AND Maria-Jose Vias Reviewed By Claire Parkinson Published March 5, 2019 Highlights Antarctic sea ice gains are too small to cancel out Arctic losses. Regardless, you do point out looking at just a couple years isnt the best strategy, and I completely agree. The biggest difference is that the Arctic sea ice forms in a huge ocean surrounded by the northern hemisphere land masses, while the Antarctic sea ice forms as a fringe around a vast frozen continent. But 5 years without a new low (or even close), and with the ice sheet currently 400,000 KM2 larger than it was 10 years ago in 2007, there is no longer evidence of a pervasive, and certainly not an accelerating trend. Fish bladders? The central continent is still very cold. [1] Zwally, J., et. When I give public lectures or talk with people interested in the topic of polar ice, somebody will often say something like: Well, the ice is decreasing in the Arctic but its increasing in the Antarctic, so dont they cancel out? said Parkinson. Sea ice concentration is the percent areal coverage of ice within the data element (grid cell). This results from the high reflectivity (albedo) of the sea ice compared to ice-free waters. The models project a decrease of Antarctic sea ice, which is in contrast with observations.. In the past decade, sea ice around the Arctic Ocean has reached record lows several times, while the extent of ice around Antarctica has reached new highs. NASA. Is disingenuous, to say the least. More theory that becomes unprovable fact .Just as inaccurate as carbon dating another fairy-tale. . The Antarctic Is Signaling Big Climate Trouble. - The New York Times http://www.skepticalscience.com/co2-lags-temperature-basic.htm, [10] Ramsayer, K. Antarctic Sea Ice Reaches New Record Maximum. http://www.sciencedaily.com/releases/2015/10/151030220523.htm. Therefore, if the increasing rates of ice loss in the West Antarctic continue, itll be only a few decades before they outweigh the ice gain in the East [12]. There are too many different lines of evidence and active inquiry to let one paper hold sway, says Scambos. Theres a lot of interannual variability in both Arctic and Antarctic sea ice, but Arctic sea ice has been decreasing in extent since the late 1970s, which is consistent with what wed expect, said study author Claire Parkinson, a climatologist at NASAs Goddard Space Flight Center in Greenbelt, Maryland. Plus, record low frequency and severity of hurricanes hitting the USA, along with tornadoes. According to National Snow & Ice Data Center, the Arctic winter sea ice extent actually hit a record low just last year. Watch on This year, Antarctic sea ice reached a record maximum extent while the Arctic reached a minimum extent in the ten lowest since satellite records began. Because all we have is data from the last 20 or 30 years. Researchers have long struggled to explain the unusual behavior of ice floating in the ocean around the planet's southernmost continent. While temperature increase sometimes precedes atmospheric CO2 increase, it is not true that this is the case most of the time hence why it is more accurate to describe it as a subtlety. Figure 8: Color-coded animation displaying the last 2 weeks of the daily sea ice concentrations in the Southern Hemisphere. There simply arent enough alpine glaciers in Italy to make up that difference. Glaciers in West Antarctica are spewing ice into the ocean at accelerating rates as warm ocean water melts them from the bottom up. Antarctica is shrinking Download PDF. https://www.nature.com/articles/nature10581. The oldest proxy data clearly demonstrates that temps rose as much as 800 years BEFORE CO2 began rising, and we have seen negative correlation happen repeatedly in our era too. As the ice then moves away from the shore, it breaks and is pushed around by wind, eventually forming thicker ridges of icea sort of reefthat protects the constantly forming younger ice from being eroded by wind and waves. published 13 July 2021 The lakes grow and shrink beneath the ice. The extents in km2for the current and for the years of minimum and maximum extents are provided below the image. We are losing a lot of ice in the west of Antarctica in the Amundsen Sea and the Bellingshausen Sea, but what we can see in these data is how that signal is changing, Fricker said. In short, NATURAL FORCES on this planet may be the only realistic explanation for the cooling and warming that has gone on for eons of time, much of it long before the activities of Homo Sapiens could be a possible explanation. Science Daily News. At the same time, oceans worldwide reached their hottest levels on record in 2021 (Climatewire, Jan. 12). NASA Earth Observatory (2009, April 20) Sea Ice. Meehl said climate change has probably amplified natural shifts in sea ice levels but said more data and better climate models will be needed before scientists can fully understand the possible connection. Susan Callery Save my name, email, and website in this browser for the next time I comment. And scientists have published dire warnings that several ice shelves in West Antarctica are being undermined by warm currents where they connect to the ocean floor. Its not just this constant melt rate thats occurring there. How can the planet be experiencing a warming trend and have regions that are accumulating ice? But what caused the initial expansion and subsequent speedy retreat remains a mystery. Shame on you sky is falling climate change nazis! . It is divided by the Even as the global temperature average has risen significantly in recent decades, especially in the Arctic, the warming has not been as great in Antarctica. Unexpected Ice | Earthdata Antarctica is losing ice mass (melting) at an average rate of about 150 billion tons per year, and Greenland is losing about 270 billion tons per year, adding to sea level rise. Lets just put some numbers on this. Watch: Learn more about ice in Antarctica. Sea Ice Growing, Land Ice Shrinking. Feeling nostalgic? by Jordan Wilkerson These images, created from GRACE and GRACE-FO data, show changes in Antarctic ice mass since 2002. Randal Jackson Im sorry if this isnt where Im supposed to do this, but it seems like the links arent working for footnote 11: Oppenheimer, M, Alley, RB. For late-summer sea ice extent, I agree that we didnt hit a record low last year. The unusually strong wind patterns also carried more heat into certain parts of the Southern Ocean, speeding up the melting even more. Here, Im not discussing the future. I hope there are many more studies like this to come, backing the results with LiDAR technology. So, ALL THE ALARMISTS PREDICTIONS HAVE FAILED. Its cause is essentially the change in climate at the end of the last ice age around 10,000 years ago. During the 1980s and 90s, heavy use of aerosol sprays, refrigerants and other products containing compounds known as chlorofluorocarbons thinned the ozone layer in Earth's atmosphere and allowed more warming ultraviolet rays from the sun to reach the planets surface. NASA. The findings were published in December 2014 in the Journal of Climate. Now, Im not calling it doom, but I am saying its already come true. Antarctic sea ice has grown somewhat over the past 10 years. I am certainly not, but I propose that I could find many scientists that would differ with your ridiculous statement and insist that the sun plays the largest role in dictating temperatures on earth. The Southern Ocean is much more vulnerable to the impacts of other natural climate fluctuations, which dont always have the same kinds of effects as human-caused warming. Then you will have real catastrophic occurrences. For an optimal experience visit our site on another browser. New Years Eve in NYC almost set an all-time record LOW temperature record. However, its important not to ignore the long-term trends weve been seeing in air temperature, sea level change, and CO2 concentrations just because 5 years of Arctic sea ice extent observations dont contain a record low. Still, areas of the continent, like the Antarctic Peninsula photographed above, have increased their mass loss in the last decades. A satellite-based data record starting in late 1978 shows that indeed rapid changes have been occurring in the Arctic, where the ice coverage has been declining at a substantial rate. The natural emissions and sinks balance out. The Discovery of Global Warming. Interviews. Thats an added threat to Antarctic sea ice, researchers have warned. Is Antarctica losing or gaining ice? - Skeptical Science Because we know how fast radio waves move, if we measure how long they take to bounce off that big rock and come back to us, we can determine how far away the rock is [2]. What happens in Antarctica doesn't stay in Antarctica, since the continent's ice can affect global weather and sea level. A team of researchers in the U.S. and the U.K. found that global warming has caused a shift in wind patterns that are ultimately bringing more warm ocean water into contact with the region's ice . All rights reserved, other studies that show an overall loss of ice, contributing a small amount to sea level rise, complete disintegration of the West Antarctic ice sheet, Do Not Sell or Share My Personal Information. This is merely a news article that got a little carried away by one research finding on a warming Arctic island. The Earth constantly gives off heat, too. Across large swaths of land surface, this small contribution could propagate into an apparent enormous gain in ice mass thats not really there [3]. Click to email a link to a friend (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Reddit (Opens in new window). These images use data from the AMSR-E/AMSR2 Unified Level-3 12.5 km product. The Gakkel ridge is an enormous deep ridge filled with underwater volcanoes (1,100 miles long), running below the Arctic Ocean from the northern tip of Greenland to Siberia. It is becoming painfully obvious that ..the 1999-2007 Gakkel Ridge heat and chemically charged fluid flow event was the root cause of accelerated Arctic sea ice melting rate.. There is ice loss still occurring at the periphery of West Antarctica; its simply that the ice gains in the other regions are greater in magnitude [1] (Figure 2). Courtesy of NASA/OIB/Jeremy Harbeck. In fact, the 10 lowest summer Arctic sea ice extents observed have occurred 2007 onward. Radar? NASA Earth Observatory (2014, September 24) A Tale of Two Poles. She dug into the data. Published: 02 March 2006; Antarctica is shrinking. Furthermore, instead of contributing to rising sea levels, the still-very-much-frozen southern continent is actually reducing them by 0.23 mm per year. But I just wanted to first clarify that this theory is accepted by tens of thousands of experts not just one or two scientists being quoted by news media outlets. For that reason, a recent finding regarding the trend in Antarctic ice is quite perplexing; the ice sheet is reportedly increasing in size!

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