Via By NoTricksZone :on 8. February 2018 //
Anthropogenic Influence On Arctic Climate
‘Too Small To Be Detected’
The evidence compiled in scientific papers continues to rapidly accumulate.
An anthropogenic signal in the regional Arctic climate is still too small to be detected.
Temperature, glacier melt, and sea ice changes are all well within the range of natural variation for the Arctic region. The changes that do occur have identifiable origins that are unrelated to atmospheric CO2 concentrations or human emissions.
Below is a brief summary of some of the latest research that underscores the lack of connection between anthropogenic influences and climate-related changes in the Arctic.
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INTERESTING to see how the warmist community will spin the “science” from these latest inconvenient findings that contradict IPCC climate model predictions and the endless “Hottest Year Evah“ PR claims.
NO doubt, Climate Crisis Inc … and the UN IPCC won’t go near it. And don’t expect to see empirical evidence of globally cooling oceans and thickening glaciers gleefully reported on CNN, BBC or ABC Australia. Any climate news that doesn’t fit the human-caused warming narrative is expressly ignored by the #FakeNews mainstream media, using their favoured and most effective propaganda weapon – confirmation bias.
MORE from Kenneth Richard via Pierre Gosselin’s excellent site NoTricksZone :
12 New Papers: North Atlantic, Pacific, And Southern Oceans Are Cooling As Glaciers Thicken, Gain Mass
Contrary to expectations, climate scientists continue to report that large regions of the Earth have not been warming in recent decades.
According to Dieng et al. (2017), for example, the global oceans underwent a slowdown, a pause, or even a slight cooling trend during 2003 to 2013. This undermines expectations from climate models which presume the increase in radiative forcing from human CO2 emissions should substantially increase ocean temperatures.
The authors indicate that the recent trends in ocean temperatures “may just reflect a 60-year natural cycle“, the AMO (Atlantic Multidecadal Oscillation), and not follow radiative forcing trends.
Dieng et al., 2017 We investigate the global mean and regional change of sea surface and land surface temperature over 2003–2013, using a large number of different data sets, and compare with changes observed over the past few decades (starting in 1950). … While confirming cooling of eastern tropical Pacific during the last decade as reported in several recent studies, our results show that the reduced rate of change of the 2003–2013 time span is a global phenomenon. GMST short-term trends since 1950 computed over successive 11-year windows with 1-year overlap show important decadal variability that highly correlates with 11-year trends of the Atlantic Multidecadal Oscillation index. The GMST 11-year trend distribution is well fitted by a Gaussian function, confirming an unforced origin related to internal climate variability.
We evaluate the time derivative of full-depth ocean heat content to determine the planetary energy imbalance with different approaches: in situ measurements, ocean reanalysis and global sea level budget. For 2003–2013, it amounts to 0.5 +/− 0.1 W m−2, 0.68 +/− 0.1 W m−2 and 0.65 +/− 0.1 W m−2, respectively for the three approaches. Although the uncertainty is quite large because of considerable errors in the climate sensitivity parameter, we find no evidence of decrease in net radiative forcing in the recent years, but rather an increase compared to the previous decades.
We can note that the correlation between GMST [global mean surface temperature] trends and AMO trends is quite high. It amounts 0.88 over the whole time span. At the beginning of the record, the correlation with PDO trends is also high (equal to 0.8) but breaks down after the mid-1980s. The GMST and AMO trends shown in Figure 6 show a low in the 1960s and high in the 1990s, suggestive of a 60-year oscillation, as reported for the global mean sea level by Chambers et al. (2012). Thus the observed temporal evolution of the GMST [global mean surface temperature] trends may just reflect a 60-year natural cycle driven by the AMO.
Subpolar North Atlantic Cooling Rapidly Since 2005
According to Piecuch et al. (2017) there has been no net warming of the North Atlantic Ocean in the last quarter century. The warming that occurred in the 10 years from 1994-2004 has been completely negated by an even more pronounced cooling trend since 2005. The predominant (87%) cause of the warming was determined to be of the same natural (non-anthropogenic) origin as the subsequent cooling: advection, the movement/circulation of heat via internal processes. In fact, human CO2 emissions are never mentioned as even contributing to the the 1994-2004 warming.
Piecuch et al., 2017 The subpolar North Atlantic (SPNA) is subject to strong decadal variability, with implications for surface climate and its predictability. In 2004–2005, SPNA decadal upper ocean and sea-surface temperature trends reversed from warming during 1994–2004 to cooling over 2005–2015. … Over the last two decades, the SPNA has undergone a pronounced climate shift. Decadal OHC and SST trends reversed sign around 2004–2005, with a strong warming seen during 1994–2004 and marked cooling observed over 2005–2015. These trend reversals were pronounced (> 0.1 °C yr−1 in magnitude) in the northeastern North Atlantic (south and west of Iceland) and in the Labrador Sea. … To identify basic processes controlling SPNA thermal variations, we diagnose the SPNA heat budget using ECCOv4. Changes in the heat content of an oceanic control volume can be caused by convergences and divergences of advective, diffusive, and surface heat fluxes within the control volume. [Advective heat convergence] explains 87% of the total [ocean heat content] variance, the former [warming] showing similar decadal behavior to the latter [cooling], increasing over 1994–2004, and decreasing over 2005–2015. … These results demonstrate that the recent SPNA decadal trend reversal was mostly owing to advective convergences by ocean circulation … decadal variability during 1993–2015 is in largest part related to advection by horizontal gyres.
Yeager and Robson (2017) also point out that, like it did from the 1960s to 1980s, the North Atlantic “has again been cooling”, a trend which they and others expect to continue. Sea surface temperatures are no warmer today than they were in the 1950s.
Yeager and Robson, 2017 [W]hile the late twentieth century Atlantic was dominated by NAO-driven THC [thermohaline circulation] variability, other mechanisms may dominate in other time periods. … More recently, the SPNA [sub polar North Atlantic] upper ocean has again been cooling, which is also thought to be related to a slowdown in the THC. A continued near-term cooling of the SPNA has been forecast by a number of prediction systems, with implications for pan-Atlantic climate.
The Southern Ocean Has Been Cooling Since The 1970s, Contrary To Models
Latif et al., 2017 The Southern Ocean featured some remarkable changes during the recent decades. For example, large parts of the Southern Ocean, despite rapidly rising atmospheric greenhouse gas concentrations, depicted a surface cooling since the 1970s, whereas most of the planet has warmed considerably. In contrast, climate models generally simulate Southern Ocean surface warming when driven with observed historical radiative forcing. The mechanisms behind the surface cooling and other prominent changes in the Southern Ocean sector climate during the recent decades, such as expanding sea ice extent, abyssal warming, and CO2 uptake, are still under debate. Observational coverage is sparse, and records are short but rapidly growing, making the Southern Ocean climate system one of the least explored. It is thus difficult to separate current trends from underlying decadal to centennial scale variability.
Turney et al., 2017 Occupying about 14% of the world’s surface, the Southern Ocean plays a fundamental role in ocean and atmosphere circulation, carbon cycling and Antarctic ice-sheet dynamics. … As a result of anomalies in the overlying wind, the surrounding waters are strongly influenced by variations in northward Ekman transport of cold fresh subantarctic surface water and anomalous fluxes of sensible and latent heat at the atmosphere–ocean interface. This has produced a cooling trend since 1979.
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Half of the 10% of glaciers we study have been growing, the other receding.
Glaciers including the mile-thick ice that once covered Chicago have been receding (melting) for the past 20,000 years, since the end of the last ice-age.
That said, receding or growing glaciers are a bad and deceptive metric to determine “anthropogenic” global warming because their growth or decline is largely dependent on precipitation – snowfall.
By Paul Homewood
At the bottom of that rather flawed article from the Weather Channel is a series of photos of glaciers, all designed to suggest that they have been melting rapidly because of your SUV.
For instance, Alaska’s Muir Glacier:
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People who follow the “climate change” mantra know exactly what to think and feel about the topic but have no concept of the facts. This is problematic as the inability to recognise and compare historical evidence against real-world data, ferments a groupthink hysteria that
global warming climate change is unprecedented and caused solely by evil humans.
This is simply not true. Climate change, extreme or otherwise, has been happening for billions of years, and yes, well before industrialisation.
Climate group-thinkers are very strong on opinion and shonky on facts. They know what they should think about
global warming climate change, but have no idea why they should think it.
This five minute US congressional video highlights brilliantly the fact-free, pseudoscientific groupthink zealotry that has so dangerously infected the gullible, and inspired a trillion dollar faith-based industry we know as “climate change”.
Be sure to watch this ‘ouch’ moment c/o Barack Obama’s Chief Climate Advisor… 🤔
The article, which was written by the Associated Press, appeared in scores of newspapers around the country in November of 1922. A researcher named John Lockwood found the article archived at the Library of Congress in 2007.
The article was based on a report that appeared in the November 1922 edition of the Monthly Weather Review. The original report says an expedition was sent by the Norwegian Department of Commerce to the Arctic Circle to survey land and to make “oceanographic investigations.” According to excerpts from the report:
“The Arctic Ocean is warming up, icebergs are growing scarcer and in some places the seals are finding the water too hot, according to a report to the Commerce Department yesterday from Consul Ifft, at Bergen, Norway.
“Reports from fishermen, seal hunters and explorers, he declared, all point to a radical change in climate conditions and hitherto unheard-of temperatures in the Arctic zone.
“Exploration expeditions report that scarcely any ice has been met with as far north as 81 degrees 29 minutes. Soundings to a depth of 3,100 meters showed the gulf stream still very warm.
“Great masses of ice have been replaced by moraines of earth and stones, the report continued, while at many points well known glaciers have entirely disappeared.
“Very few seals and no white fish are found in the eastern Arctic, while vast shoals of herring and smelts, which have never before ventured so far north, are being encountered in the old seal fishing grounds.”
“Ice conditions were exceptional. In fact, so little ice has never before been noted … This is the farthest north ever reached with modern oceanographic apparatus.
“…It is of interest to note the unusually warm summer in Arctic Norway and the observations of Capt. MartinIngebrigstaen, who has sailed the eastern Arctic for 54 years past.
“He says that he first noted warmer conditions in 1918, that since that time it has steadily gotten warmer, and that to-day the Arctic of that region is not recognizable as the same region of 1868 to 1917.”
Yes! The Climate Changes, even when your SUV is garaged.
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Arctic Recovery Related :
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Yet another excellent example of how real world evidence (the science) is turned on its head to promote the activist climate agenda.
President Eisenhower warned America about the likes of Barack Obama in 1960 :
“The prospect of domination of the nation’s scholars by Federal employment, project allocations, and the power of money is ever present and is gravely to be regarded.
Yet, in holding scientific research and discovery in respect, as we should, we must also be alert to the equal and opposite danger that public policy could itself become the captive of a scientific technological elite.”
– President Eisenhower 1960
By Paul Homewood
Steve Milloy’s take on Obama’s Alaskan trip, which seems to have been a waste of time anyway:
President Obama’s hike up the rapidly melting Exit Glacier today has run into some unfortunate buzzkill: reality.
The hike is supposed to be the high point of this week’s trip to Alaska, undertaken for the purpose of dramatizing global warming. The media pitch is that Exit Glacier has been rapidly retreating for decades because of global warming.
Sadly for the President’s play acting, though, the National Park Service previously reported that Exit Glacier has been exiting since at least the early 1800s — before the Industrial Revolution even got underway.
This isn’t the only intrusion of reality into the President’s staged climate drama.
While the President made big news announcing that he was changing the name of Mt. McKinley to Denali, the irony is that multiple glaciers there are…
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Obama is spreading all kinds of lies about Alaskan glaciers, which his own agencies knows are not true. Nothing is said or done to stop the liar in chief.
The USGS knows that Alaskan glaciers retreated much faster in the 19th century.
The National Park Service knows that Alaskan glaciers retreated much faster in the 19th and early 20th centuries. (h/t Steve Milloy)
The Little Ice Age (LIA) was a time of global cooling from approximately 1350 to 1870 AD. During this time glaciers expanded in the northern regions, moving down the mountains and scouring the vegetation that had been in the valleys below. Park Service personnel recently discovered evidence of a buried forest dating back to at least 1170 AD high in the Forelands near the current glacier’s edge.
Michael Mann erased the Little Ice Age and the Medieval Warm period, which clearly was not confined to Europe as…
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Don’t scoff when you hear an old timer say: “Summers are hot- ter than they used to be.” This remark could once have been classed with “Stairs are steeper than they used to be,” and “Young people are wilder than when I was a boy.”
But today an impressive number of scientists, both old and young, are convinced that the oldtimers are right.