Archives par mot-clé : Arctic

Status of Canadian polar bears updated map from Environment Canada

by Dr. Susan Crockford, May 24, 2018 in PolarBearScience


DDuring a meeting of polar bear range states (Canada, Russia, Greenland, Norway, and the USA) in late January 2018 to discuss conservation issues, Canada — home to ~2/3 of the world’s polar bears — included in its presentation an updated population status and trend map approved by the Polar Bear Technical Committee in its presentation. This 2017 map replaces one from 2014 but is not yet available on the Environment Canada website.

 

 

The gypsum gravity chute: A phytoplankton-elevator to the ocean floor

by

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, May 22, 2018 in ScienceDaily


When marine algae die, they usually float in slow motion to the ocean’s depths. However, during an expedition with the research icebreaker Polarstern to the Arctic in the spring of 2015, scientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) discovered a phenomenon that significantly accelerate this transport: tiny gypsum crystals, which form during the freezing of salt in the porous spaces of Arctic sea ice, weigh down the phytoplankton like heavy ballast, pulling them to the bottom within a matter of hours. The effect is like an express elevator for the carbon they contain. “This mechanism was previously completely unknown,” says marine bio-geologist Dr Jutta Wollenburg … (…)

Solar Activity Flat Lines…Cycle 24 Weakest In 200 Years…Link To Recent Northern Hemisphere Ice Rebound?

by F. Bosse and Prof. F. Vahrenholt, April 28, 2018 in NoTricksZone


As the current solar cycle nears an end, it will go down as the weakest in close to 200 years. And as inhabitants of the northern hemisphere dig themselves out of an especially icy and snowy winter and Arctic sea ice rebounds, it may all be in part linked to low solar activity as many scientific studies have long suggested.

Figure 1:  The current solar cycle no. 24 (red) compared to the mean of the previous 23 recorded solar cycles (blue) and the similar solar cycle no. 5 (black)

(…)

Climate Scientists Recant

by K. Richard, April 19, 2018 in NoTricksZone


The Arctic region was the largest contributor to the positive slope in global temperatures in recent decades.

Consequently, the anomalously rapid warming in the Arctic region (that occurred prior to 2005) has been weighted more heavily in recent adjustments to instrumental temperature data (Cowtan and Way, 2013; Karl et al., 2015) so as to erase the 1998-2015 hiatus and instead produce a warming trend.

Meanwhile, other scientists have been busy determining that only about 50% of the warming and sea ice losses for the Arctic region are anthropogenic, or connected to the rise in CO2 concentrations.

The rest of the warming and ice declines can be attributed to unforced natural variability.

Largest High-Arctic Lake Melting From Geothermal Heat, Not Global Warming

by James E. Kamis, April 16, 2018  in ClimateChangeDispatch


Recent changes to Lake Hazen, the world’s largest high-Arctic lake, are from increased heat flow from the area’s known geological features, and not from global warming as per the many alarmist media reports.

Evidence supporting this is abundant and reliable.

Northeast Canada’s Lake Hazen lies adjacent to the world-class Greenland/Iceland mantle plume.

Scientists discover first super salty subglacial lakes in Canadian Arctic

by University of Alberta, April 11, 2018 in ScienceDaily


Super salty water beneath ice could serve as a terrestrial analogue for a habitat for life on other planets.

An analysis of radar data led scientists to an unexpected discovery of two lakes located beneath 550 to 750 meters of ice underneath the Devon Ice Cap, one of the largest ice caps in the Canadian Arctic. They are thought to be the first isolated hypersaline subglacial lakes in the world.

Climatic Cycles Globally…Spitzbergen Weather Records Show It Was Just As Warm 70 Years Ago!

by P. Gosselin, April 8, 2018 in NoTricksZone


On Spitzbergen it was as warm 70 years ago as it is today

By Dr. Sebastian Lüning and Prof. Fritz Vahrenholt
(German text translated by P Gosselin)

Newspapers like to write about heat and melt records in the Arctic, which supposedly had never happened before. That really sparks fear among the citizens. However an examination of the facts regularly brings amazing things to light, for example weather records from a German station on Spitzbergen during World War 2 for the period of 1944-1945.

In the journal International Journal of Climatology Rajmund Przybylak and his colleagues evaluated the data. Summary: Back then it was similarly warm as it is today

Climate Science Integrity And Intelligence At All Time Record Low

By Tony Heller, April 1, 2018 in TheDeplorableClimSciBlog


With temperatures of -30C and Arctic sea ice nearing its winter maximum, government climate scientists and their useful idiots in the press announce that Arctic sea ice is “near an all time low.”

In the actual Arctic, sea ice extent is increasing, more than

double six months ago, and essentially identical to all recent years (…)


 

Extreme winter weather, such as ‘Beast from the East’, can be linked to solar cycle

by University of Exeter, March 20, 2018 in PhysOrg


Periods of extreme cold winter weather and perilous snowfall, similar to those that gripped the UK in a deep freeze with the arrival of the ‘Beast from the East’, could be linked to the solar cycle, pioneering new research has shown.

A new study, led by Dr Indrani Roy from the University of Exeter, has revealed when the is in its ‘weaker’ phase, there are warm spells across the Arctic in winter, as well as heavy snowfall across the Eurasian sector.

The research is published in leading journal Scientific Reports, a Nature Publication, on Tuesday, 20 March 2018.

 

Arctic Wintertime Sea Ice Extent Is Among Lowest On Record (but not THE lowest)

by Anthony Watts, March 23, 2018 in WUWT


From NASA Goddard:

Sea ice in the Arctic grew to its annual maximum extent last week, and joined 2015, 2016 and 2017 as the four lowest maximum extents on record, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) and NASA.

On March 17, the Arctic sea ice cover peaked at 5.59 million square miles (14.48 million square kilometers), making it the second lowest maximum on record, at about 23,200 square miles (60,000 square kilometers) larger than the record low maximum reached on March 7, 2017 (…)

A Geological Perspective of the Greenland Ice Sheet

by D. Middleton, March 22, 2018 in WUWT


How Does the Recent Melting of the Greenland Ice Sheet Compare to the Early Holocene?

Short answer: Same as it ever was.  Vinther et al., 2009 reconstructed the elevations of four ice core sites over the Holocene.  There has been very little change in elevation of the two interior ice core sites (NGRIP and GRIP), while the two outboard sites (Camp Century and DYE3) have lost 546 and 342 m of ice respectively.

Arctic Ice Volume Growth Surprises As Solar Activity Approaches Near 200-Year Low

by F. Bosse and Prof. F. Vahrenholt, March 20, 2018 in NoTricksZone


The sunspot number for February 2018 was 10.6 and thus was some 30% below the meanfor this time into the cycle. At the moment solar activity is close to quiet.

Just 10 years ago, all the talk was about the Arctic sea ice “death spiral”, with some of scientists hysterically predicting the sea ice would soon disappear altogether in the summertime. Ten years later the scientists are now scratching their heads as sea ice has stabilized and is showing some clear signs of a rebound.

An “Exceptionally large amount of winter snow in Northern Hemisphere this year

by A. Watts, March 14, 2018 in WUWT


From the Snowfalls are now just a thing of the past department and the Finnish Meteorological Institute comes this press release today.

Exceptionally large amount of winter snow in Northern Hemisphere this year

The new Arctic Now product developed by the Finnish Meteorological Institute shows with one picture the extent of the area in the Northern Hemisphere currently covered by ice and snow. This kind of information, which shows the accurate state of the Arctic, becomes increasingly important due to climate change. The Arctic region will be discussed at the Arctic Meteorological Week which begins in Levi next week.

Ice-Free Arctic Fantasies Melting Away As Temperatures Plummet…Sea Ice Mass Grows Impressively

by P. Gosselin, March 14, 2018 in NoTricksZone


German skeptic and weather expert ‘Schneefan’ here writes how climate activist Mark C. Serreze recently announced this year’s sea ice extent was at the smallest all-time area. But since then Arctic temperatures have plummeted and sea ice area has grown to over 14 million square kilometers (…)

Another New Paper Shows Arctic Sea Ice Has Been INCREASING Overall Since The 1930s

by K.  Richard, March 1, 2018 in NoTricksZone


In his seminal 1982 book Climate, History, and the Modern World, the renown climatologist Dr. H.H. Lamb revealed that sea ice in the subarctic and Arctic regions was much less extensive during the Medieval Warm Period (9th-13th centuries) compared to today.

For example, records indicate that there were decadal and centennial-scale periods without any sea ice invading any of Iceland’s coasts.  These no-ice periods coincided with atmospheric CO2 concentrations of 275 ppm, which is about 130 ppm less than today’s calculated CO2 values.

(…)

Arctic Alarmists Hit New Records Of Hysteria

by P. Homewood, February 28, 2018 in NotaLotofPeopleKnowThat


 

 (…)

During the 1930s and 40s, and in earlier parts of the cycle, winters and spring were much warmer than, for instance, the 1960s and 70s. And, again, we see that those warmer decades were just as warm as recently.

It is these two seasons that have largely driven the annual changes.

In other words, the warmer winters we now commonly see in the Arctic are nothing new at all. They only appear unusual because we have started looking at data since 1954.

(…)

NOAA Continue To Pump Out Arctic Lies

by P. Homewood, February 21, 2018 in NotaLotofPeopleKnowThat


The Arctic Ocean once froze reliably every year. Those days are over.

Arctic sea ice extent has been measured by satellites since the 1970s. And scientists can sample ice cores, permafrost records, and tree rings to make some assumptions about the sea ice extent going back 1,500 years. And when you put that all on a chart, well, it looks a little scary (…)

Arctic chill at 85F below zero – So cold, Eskimos advised to stay inside!

by A. Watts, February 12, 2018 in WUWT


Arctic Weather Brrrrreaking Records

Rankin Inlet, Nunavut gets cold in the winter. Located on the northwestern shore of the Hudson Bay at 62 degrees north and between Chesterfield Inlet and Arviat, the town is definitely in a remote yet exposed region. Weather is just a part of life and recently the weather has been colder than cold.

Groundbreaking AGW-Undermining Study: Greenland’s Warming, Ice Loss Due To Geothermal Heat

by K. Richard, January 24, 2018 in NoTricksZone


A few years ago, 10 glaciologists publishing in the journal Nature Geoscience asserted that “large parts of the north-central Greenland ice sheet are melting from below” due to high geothermal heat flux forcing (Rogozhina et al., 2016).

In a new paper published in Scientific Reports, 4 more glaciologists (Rysgaardet al., 2018) report that “hot vents” (or hot springs) of geothermally-heated water underneath the Greenland ice sheet can explain localized rising temperatures and glacial melting.

NINE YEARS AGO… Al Gore Predicted North Pole Would Be Completely Ice Free by Today

by Jim Hoft, December 28, 2017 in GatewayPundit


NINE YEARS AGO THIS MONTH—
Al Gore predicted the North Polar Ice Cap would be completely ice free in five years.
Gore made the prediction to a German audience in 2008. He told them that “the entire North ‘polarized’ cap will disappear in 5 years.”

This wasn’t the only time Gore made his ice-free prediction. Gore’s been predicting this since 2007.

See also here