Study: Antarctic Ice Sheet Has Been Stable For Millions Of Years – During Warmer Temps Than Now
Via: http://mailchi.mp/thegwpf/antarctic-ice-more-stable-than-thought?e=f4e33fdd1e
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 The ice sheets of central Antarctica have been stable for millions of years when conditions were warmer than now, a new research has found. Researchers from the Universities of Edinburgh and Northumbria studied rocks on slopes of the Ellsworth Mountains in Antarctica, whose peaks protrude through the ice sheet. However, the scientists are concerned that ice at the coastline is vulnerable to rising temperature, though the discovery points towards the long-term stability of Antarctica’s ice sheet. — The Indian Express, 8 May 2017 Glacier flow at the southern Antarctic Peninsula has increased since the 1990s, but a new study has found the change to be only a third of what was recently reported. The new research calls into question recent claims of much more dramatic ice loss. The new Leeds led research calls into question a recent study from the University of Bristol that reported 45 cubic kilometres per year increase in ice loss from the sector. The Leeds research found the increase to be three times smaller. —University of Leeds, 2 May 2017 1) Antarctic Ice Sheets Stable For Millions Of Years 2) Antarctic Peninsula Ice More Stable Than Thought 3) Data Analyses Show Rapid Global Surface Cooling, Growing Arctic Ice Thickness 4) Scientists ‘More Confident Than Ever’ In Global Warming After Studying The Lack Of It For 15 Years 5) NYT Columnist Warns Of ‘Intellectual Hubris’ Among Climate Scientists 6) Ivanka Trump To Review Climate Policy As US Mulls Paris Pullout 7) And Finally: Are Microbiologists Climate-Denying Science Haters? A new study examining explanations for the 10- to 15-year “hiatus” in global warming has scientists “more confident than ever that human influence is dominant in long-term warming.” But climate skeptics are already firing back at the claims. IACS’s study looked at different explanations for the “hiatus” in global warming, which the study defined as the 10 or 15 years after 1998, ultimately to put to rest arguments by skeptics the lack of warming during this time cut into theories of catastrophic warming. “I think it |
Paper: ‘Earth On Course For 100-Year Mini-Ice Age’
http://www.dailystar.co.uk/news/latest-news/611671/ice-age-britain-freeze-climate-change-weather
Experts told Daily Star Online planet Earth is on course for a “Little Age Ice” within the next three years thanks to a cocktail of climate change and low solar activity.
Research shows a natural cooling cycle that occurs every 230 years began in 2014 and will send temperatures plummeting even further by 2019.
Scientists are also expecting a “huge reduction” in solar activity for 33 years between 2020 and 2053 that will cause thermometers to crash.
Both cycles suggest Earth is entering a global cooling cycle that could have devastating consequences for global economy, human life and society as we know it.
If predictions of the world-wide big freeze come true, the plot to 2004 film The Day After Tomorrow would not be far from reality during winter.
Another Arctic ice panic ends as world temperatures plummet
Inevitably, when even satellite temperatures were showing 2016 as “the hottest year on record”, we were going to be told last winter that the Arctic ice was at its lowest extent ever. Sure enough, before Christmas, a report from the US National Oceanic and Atmospheric Administration was greeted with such headlines as “Hottest Arctic on record triggers massive ice melt”. In March we had the BBC trumpeting another study that blamed vanishing Arctic ice as the cause of weather which led to the worst-ever smog in Beijing, warning that it “could even threaten the Beijing Winter Olympics in 2022”.
But last week we were brought back to earth by the Danish Meteorological Institute (DMI), as charted by our friend Paul Homewood on his blog Notalotofpeopleknowthat, with the news that ever since December temperatures in the Arctic have consistently been lower than minus 20 C. In April the extent of Arctic sea ice was back to where it was in April 13 years ago. Furthermore, whereas in 2008 most of the ice was extremely thin, this year most has been at least two metres thick. The Greenland ice cap last winter increased in volume faster than at any time for years.
As for those record temperatures brought in 2016 by an exceptionally strong El Niño, the satellites now show that in recent months global temperatures have plummeted by more that 0.6 degrees: just as happened 17 years ago after a similarly strong El Niño had also made 1998 the “hottest year on record”.
This means the global temperature trend has now shown no further warming for 19 years. But the BBC won’t be telling us any of this. And we are still stuck with that insanely damaging Climate Change Act, which in this election will scarcely get a mention.
Full post
…Global Warming Will Kill Us All By Releasing Viruses From The Ice Or Something
I’ve lost track of all the reasons global warming climate change is going to kill us all, but I don’t think I’ve heard this one before. Jasmin Fox-Skelly, BBC News: Climate change is melting permafrost soils that have been frozen for thousands of years, and as the soils melt they are releasing ancient viruses and […]
Source: Global Warming Will Kill Us All By Releasing Viruses From The Ice Or Something…
Study: EVOLUTION OF ARCTIC SEA ICE IN THE PRE- AND POST-SATELLITE ERA
Re-calibration of Arctic sea ice extent datasets using Arctic surface air temperature records
Abstract: A new seasonal and annual dataset describing Arctic sea ice extents for 1901-2015 was constructed by individually re-calibrating sea ice data sources from the three Arctic regions (North American, Nordic and Siberian) using the corresponding surface air temperature trends for the pre-satellite era (1901-1978), so that the strong relationship between seasonal sea ice extent and surface air temperature which has been observed for the satellite era (1979-present) also applies to the pre-satellite era. According to this new dataset, the recent period of Arctic sea ice retreat since the 1970s followed a period of sea ice growth since the mid-1940s, which in turn followed a period of sea ice retreat since the 1910s. Arctic sea ice is a key component of the Arctic hydrological cycle both through its freshwater storage role, and its influence on oceanic and atmospheric circulation. Therefore, these new insights have significance for our understanding of Arctic hydrology.
Full paper available from the lead author
…NEW STUDY CONFIRMS: THE WARMING ‘PAUSE’ IS REAL AND REVEALING
A new paper has been published in the Analysis section of Nature called Reconciling controversies about the ‘global warming hiatus.’ It confirms that the ‘hiatus’ or ‘pause’ is real. It is also rather revealing.
It attempts to explain the ‘Pause’ by looking into what is known about climate variability. They say that four years after the release of the IPCC AR5 report, which contained much about the ‘hiatus’ it is time to see what can be learned.
One could be a little sarcastic in saying why would Nature devote seven of its desirable pages to an event that some vehemently say never existed and maintain its existence has been disproved long ago. Now, however, as the El Nino spike of the past few years levels off, analysing the ‘pause’ seems to be coming back into fashion.
The authors of this recent paper delicately tread a line between the two opposing camps saying, on the one hand, that both sides have a point and their particular methods of analysis are understandable. But on the other hand they make it clear that there is a real event that needs studying.
As someone who has paid close attention to the ‘pause’ for almost a decade I am perhaps more attentive than most when it comes to a retelling of the history of the idea and the observations.
The authors say the pause started with claims from outside the scientific community. Well, yes and no. It was tentatively suggested in 2006 and 2007 by climate sceptics many of whom were experienced scientists and quite capable of reading a graph and calculating statistics. A decade after it was raised, every time the ‘pause’ is debated it is a tribute to those who first noticed it and faced harsh criticism. It was the sceptics who noticed the ‘pause,’ and in doing so made a valuable contribution to science. For years it was only analysed and discussed on the blogosphere before journals took notice.
There is nothing new in their recent paper or that hasn’t been discussed by the GWPF. Perhaps that will give pause for thought for some who see battle lines drawn between pause supporters (sceptics) and pause busters (scientists).
What the authors miss, with their three definitions of the pause, is a simple fact we have often pointed out. Look at HadCRUT4 from …
There Has Been No ‘Global’ Warming In The Southern Hemisphere, Equatorial Regions
Half The Planet Has Not Cooperated With The ‘Global’ Warming Narrative According to overseers of the long-term instrumental temperature data, the Southern Hemisphere record is “mostly made up”. This is due to an extremely limited number of available measurements both historically and even presently from the south pole to the equatorial regions.
Source: There Has Been No ‘Global’ Warming In The Southern Hemisphere, Equatorial Regions…
No NY Times, Arctic ice is not ‘vanishing’
Via: http://junkscience.com/2017/05/no-nytimes-arctic-ice-is-not-vanishing/
Here’s the fake news headline:
Here’s the reality:
According to NOAA, Northern Hemisphere sea ice has declined somewhat since 1980, but it certainly is not “vanishing”:
And when you consider that NOAA has a pre-1980 sea ice record, you might reasonably wonder what all the fuss us about.
That’s why the NYTimes is called “fake news.”
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Related Links:
Lindzen on Arctic sea ice:
Satellites have been observing arctic (and Antarctic) sea ice since 1979. Every year there is a pronounced annual cycle where the almost complete winter coverage is much reduced each summer. During this period there has been a noticeable downtrend is summer ice in the arctic (with the opposite behavior in the Antarctic), though in recent years, the coverage appears to have stabilized. In terms of climate change, 40 years is, of course, a rather short interval. Still, there have been the inevitable attempts to extrapolate short period trends leading to claims that the arctic should have already reached ice free conditions. Extrapolating short term trends is obviously inappropriate. Extrapolating surface temperature changes from dawn to dusk would lead to a boiling climate in days. This would be silly. The extrapolation of arctic summer ice coverage looks like it might be comparably silly. Moreover, although the satellite coverage is immensely better than what was previously available, the data is far from perfect. The satellites can confuse ice topped with melt water with ice free regions. In addition, temperature might not be the main cause of reduced sea ice coverage. Summer ice tends to be fragile, and changing winds play an important role in blowing ice out of the arctic sea. Associating changing summer sea ice coverage with climate change is, itself, dubious. Existing climate models hardly unambiguously predict the observed behavior. Predictions for 2100 range from no change to complete disappearance. Thus, it cannot be said that the sea ice behavior confirms any plausible prediction.
It is sometimes noted that concerns for disappearing arctic sea ice were issued in 1922, suggesting that such behavior is not unique to the present. The data used, at that time, came from the neighborhood of Spitzbergen. A marine biologist and climate campaigner has argued that what was described was a local phenomenon, but, despite the claim, the evidence presented
Delingpole: ‘Climate Change’ Is No More Credible than Magic Says Top Physicist
…Inconvenient study concludes: warmer temperatures lead to a more stable climate
From RESEARCH ORGANIZATION OF INFORMATION AND SYSTEMS and the “goodbye climate disruption” department, comes this study that might very well explain why we have less landfalling U.S. hurricanes, less tornadoes, and extreme weather of all kinds seems to be waning.
Climate instability over the past 720,000 years
Ice core analysis from Dome Fuji, Antarctica and climate simulation
A research group formed by 64 researchers from the National Institute of Polar Research, the University of Tokyo, and other organizations analyzed atmospheric temperatures and dust for the past 720,000 years using an ice core obtained at Dome Fuji in Antarctica. Results indicate that when intermediate temperatures occurred within a glacial period, the climate was highly unstable and fluctuated. A climate simulation was also performed based on the Coupled Atmosphere-Ocean General Circulation Model, which revealed that the major cause of the observed climate instability was global cooling by a decline in the greenhouse effect.
Climate instability severely impacts both the Earth’s natural environment and human society. In the continued effort for understanding how global warming could affect climate instability, it is important to identify periods in the past that experienced climate instability. These periods need to be studied and modeled to clarify any potential causes of the observed instability. However, little progress has been made in improving our documenting and understanding of climate instability prior to the last glacial period.
The research groups of Dr. Kenji Kawamura and Dr. Hideaki Motoyama (National Institute of Polar Research) analyzed the Second Dome Fuji ice core (Fig. 1, left) that were obtained as part of the Japanese Antarctic Research Expedition (JARE) between 2003 and 2007. Their team reproduced fluctuations in the air temperature and dust (solid particulate mat