background preloader

Antarctic

Facebook Twitter

20+ Scientists: ‘No Continent-Scale Warming Of Antarctic Temperature Is Evident In The Last Century’ Image Source: State of the Climate, 2016 For several decades now, Antarctica has not been cooperating with the “global” warming narrative, as the continent as a whole has not been warming. Several scientific papers have been published recently that document the lack of an anthropogenic warming signal for the Antarctic continent or the surrounding ocean, as well as the dominance of natural variability. Smith and Polvani (2016) concluded that warming of West Antarctica or the Antarctic Peninsula are predominantly natural. “[We] conclude that there is little evidence of anthropogenic SAM-induced driving of the recent temperature trends … compelling evidence pointing to natural climate variability as a key contributor to the recent warming of West Antarctica and of the Peninsula“ “The annual mean temperature has decreased at a statistically significant rate, with the most rapid cooling during the Austral summer.”

A 2,000-Year Cooling Trend For Antarctica, Uninterrupted By Rising CO2 Levels. New Antarctic Sea Ice Video – shows cycles and ice growth | Watts Up With That? Antarctic Sea Ice Complete Video by Jeff Id , reposted here by invitation. The video animation Jeff put together is well worth watching, see it below the “read more” line. – Anthony Figure 1 - Wilkins Ice Shelf - A map of the Antarctic Peninsula with the location of the the Wilkins Ice Sheet, which is on the southern portion of the peninsula. Credit: British Antarctic Survey Antarctic temperatures and sea ice are becoming quite a hobby. The melting of the Wilkins ice shelf has happened over and over prompting numerous articles like the following. Wilkins Ice Shelf About to Break Off and Alter the Map of Antarctica Vast Antarctic Ice Shelf on Verge of Collapse The headlines are truly endless and will continue this year as well. Here is a video which is particularly pertinent in it’s discussion and the fact that it ends with a discussion of climate science by Hillary Clinton.

Wilkins Ice Shelf Collapse Video Figure 2 The annual variance of the sea ice is shown in Figure 3. Like this: New Paper Indicates Antarctica Has Been Gaining Ice Mass Since 1800. By Kenneth Richard on 30. March 2017 “Antarctica is not currently contributing to sea level rise, but is taking 0.23 millimeters per year away” — NASA Study: Mass Gains of Antarctic Ice Sheet Greater than Losses For decades scientists have suggested that the effects of a climatic warming would likely lead to an increase in Antarctica’s surface mass balance (i.e., mass gains exceed losses), and this would lead to a concomitant lowering of sea levels. Oerlemans, 1982 “The results indicate that a climatic warming will probably lead to a sea-level lowering of some tens of centimetres in the next centuries.

Huybrechts and Oerlemans, 1990 “According to this mass balance model, the amount of accumulation over the entire ice sheet is presently 24.06 x 1011 m3 of ice, and no runoff takes place. Huybrechts et al., 2004 Lenaerts et al. 2016 Thomas et al., 2017. Antarctic Sea Ice Claims Don’t Stand Up To Scrutiny | NOT A LOT OF PEOPLE KNOW THAT. By Paul Homewood From Yahoo: A few days ago, the US National Snow and Ice Data Center announced that the Antarctic sea ice contracted to just 883,015 sq. miles, which is the smallest on record. Experts assert that, if changes are not made to pollution and our fossil fuel industry, a number of species will be threatened as sea levels (and temperatures) continue to rise.

The Antarctic ice sheet goes through a cycle of expansion and contraction every year. Ultimately, the ice that exists around the continent melts during the southern hemisphere’s summer, which occurs towards the end of February, and expands again when autumn sets in. However, that melting is increasing dramatically. This week, the US National Snow and Ice Data Center (NSIDC) announced that the sea ice contracted to just 883,015 sq. miles (2.28m sq. km). NSIDC’s propagandist in chief, Mark Serreze, is quite clear: West Antarctic Glacial Melting From Deep Earth Geological Heat Flow Not Global Warming | Climate Change Dispatch. A few of West Antarctica’s glaciers that lie directly above the 5,000-mile long, world class, heat-emitting West Antarctic Fault / Rift System are bottom melting from deep earth geologically induced high geothermal heat flow and heated fluid flow, not manmade atmospheric global warming.

Figure 1. Recently released and widely publicized NASA high altitude photo of West Antarctic area where three glaciers are bottom melting at an accelerated rate. A proxy for high melting rate, high glacial velocity, is shown as red shading and black arrows (photo credit NASA Earth Observatory). The media and prominent entities studying Antarctica’s glaciers, most notably the National Aeronautics and Space Administration (NASA), see things quite differently. They believe that the increased basal melting of these West Antarctic glaciers is from manmade atmospheric global warming. Overall ice mass and extent of Antarctica has increased for 35 years. Let’s begin by reviewing Figure 1. Figure 2.) Figure 3.) Researchers discover volcanic activity is changing Antarctica’s geology | Climate Change Dispatch. On January 10, 2016, amid a flurry of worldwide media fanfare, a team of 44 scientists from Australia’s Antarctic Division set sail from Hobart Australia headed for the Kerguelen Plateau (figure 1) located off the coast of Antarctica on what was billed as a Global Warming / Climate Change Research Project (Antarctic Scientists head to Biological Hotspot studying climate change in Southern Ocean).

Figure 1: Map showing the location of the Kerguelen Plateau, Kerguelen Islands, and Heard Island (Supplied: AAD). This Plateau is approximately 600 miles north of Antarctica. The research premise was that man-made global warming was heating the ocean regions in the Kerguelen Plateau region and hurting seals, whales, birds, and worst of all, melting sea ice. They wrote that this series of environmental catastrophes was “destabilizing the region’s delicate ecosystem” and was the by-product of man-made ocean warming.

Characterizing the Kerguelen Plateau ecosystem as “delicate” is also not correct. Underwater volcanoes heating Antarctic waters. 11 Jul 2011 - Scientists from the British Antarctic Survey (BAS) have discovered previously unknown volcanoes in the ocean waters around the remote South Sandwich Islands. Using ship-borne sea-floor mapping technology during research cruises onboard the RRS James Clark Ross, the scientists found 12 volcanoes beneath the sea surface — some up to 3km (1.86 miles) high. They found 5km (3 mile) diameter craters left by collapsing volcanoes and 7 active volcanoes visible above the sea as a chain of islands. According to a press release from the Proceedings of the National Academy of Sciences of the United States (PNAS), "this sub-sea landscape, with its waters warmed by volcanic activity creates a rich habitat for many species of wildlife and adds valuable new insight about life on earth.

" (Italics added) The research is also important for understanding what happens when volcanoes erupt or collapse underwater and their potential for creating serious hazards such as tsunamis. An Ice Shelf Is Cracking In Antarctica, But Not For The Reason You Think. A NASA scientist with project IceBridge took this photo of the crack in November. John Sonntag/NASA A group of scientists is gathering today in the U.K. to discuss a slab of ice that's cracking in Antarctica. The crack could soon split off a frozen chunk the size of Delaware. One glacier scientist, Heidi Sevestre, spent six weeks last year living on that giant slab of ice off the Antarctic Peninsula. "It's like being on a different planet," says Sevestre, a glaciologist with the University of St Andrews in Scotland. "Everything is gigantic, everything is white," she says. "When you're camping on the ice shelf, you have no idea that you're on something that is floating and moving," she says.

The ice shelf is in constant motion: rising with the tides, splitting off icebergs at its edges, and growing again as inland glaciers feed it. The ice shelf Sevestre was studying is called Larsen C, and it now has a massive 90-mile crack running through it. Ice Shelf Collapse Jeremy Harbeck/NASA. Larsen C Ice Shelf Crack Not Related To Climate Change …Ice “More Stable Than Previously Thought”

By Dr. Sebastian Lüning and Prof Fritz Vahrenholt (German text translated/edited by P Gosselin) Image: visibleearth.nasa.gov A huge crack recently formed through the Antarctic Larsen C ice shelf. The German Tagesspiegel here was fair and did not attribute it to climate change: A huge iceberg threatens to break away from Antarctica An iceberg twice the size of Saarland threatens to break off the Larsen-C ice shelf.

Read more at Tagesspiegel. That’s a normal process: Self ice forms, but does not last forever. A look back over the past 10,000 years yields additional amazing facts. A number of Antarctic Peninsula ice shelves have also experienced major fluctuations during the Holocene. During the Holocene thermal maximum 6000 years ago, the outer edge of the Amery ice shelf was 80 km closer to the coast than it is today, as documented by Hemer & Harris (2003) in Geology. With a little interest in climate science, things suddenly appear much better. Uh oh: Study says ‘collapsing’ Thwaites Glacier in Antarctica melting from geothermal heat, not ‘climate change’ effects | Watts Up With That?

Remember the wailing from Suzanne Goldenberg over the “collapse” of the Thwaites glacier blaming man-made CO2 effects and the smackdown given to the claim on WUWT? Well, never mind. From the University of Texas at Austin and the “you can stop your wailing now” department, comes this really, really, inconvenient truth. Researchers find major West Antarctic glacier melting from geothermal sources AUSTIN, Texas — Thwaites Glacier, the large, rapidly changing outlet of the West Antarctic Ice Sheet, is not only being eroded by the ocean, it’s being melted from below by geothermal heat, researchers at the Institute for Geophysics at The University of Texas at Austin (UTIG) report in the current edition of the Proceedings of the National Academy of Sciences.

The findings significantly change the understanding of conditions beneath the West Antarctic Ice Sheet where accurate information has previously been unobtainable. The presence of water and heat present researchers with significant challenges. Researcher ‘has a problem’ with attributing West Antarctic Ice Sheet ‘collapse’ to human activity | Watts Up With That? From NASA JPL and Lamont-Doherty Earth Observatory, something that maybe journo-hacktivist Susanne Goldenberg should pay attention to before she writes another screed.

Reports that a portion of the West Antarctic Ice Sheet has begun to irretrievably collapse, threatening a 4-foot rise in sea levels over the next couple of centuries, surged through the news media last week. But many are asking if even this dramatic news will alter the policy conversation over what to do about climate change. Glaciers like the ones that were the focus of two new studies move at, well, a glacial pace. Researchers are used to contemplating changes that happen over many thousands of years. This time, however, we’re talking hundreds of years, perhaps — something that can be understood in comparison to recent history, a timescale of several human generations.

“We’re still not saying things are going to happen this year or next year. The glaciers studied by Rignot’s research team. The two papers in question: Trends of air temperature of the Antarctic during the period 1958–2000. A “New” Theory About the Formation of the Antarctic Ice Sheet | Watts Up With That? Guest post by David Middleton One of the big mysteries in the scientific world is how the ice sheets of Antarctica formed so rapidly about 34 million years ago, at the boundary between the Eocene and Oligocene epochs.There are 2 competing theories:The first explanation is based on global climate change: Scientists have shown that atmospheric carbon dioxide levels declined steadily since the beginning of the Cenozoic Era, 66 million years ago.

Once CO2 dropped below a critical threshold, cooler global temperatures allowed the ice sheets of Antarctica to form.The second theory focuses on dramatic changes in the patterns of ocean circulation. The theory is that when the Drake Passage (which lies between the southern tip of South America and Antarctica) deepened dramatically about 35 million years ago, it triggered a complete reorganization in ocean circulation.

Meet the new theorySame as the old theory The Earth’s climate rapidly cooled about 34 million years ago. Cenozoic atmospheric CO2. Increasing Antarctic Ice A Worry For Research Stations | NOT A LOT OF PEOPLE KNOW THAT. By Paul Homewood h/t Sunshine Hours THE size and power of ships needed to break through Antarctica’s increasing sea ice levels is a worry for the global research community. IN recent years countries including Australia have battled to reach their stations on the frozen continent, making resupply missions time consuming and expensive, Australian Antarctic Division spokesman Rod Wooding said.

"We’re noticing that the sea ice situation is becoming more difficult," he told reporters on Monday. The sea ice through the Southern Ocean and around Australia’s Mawson Station usually breaks up for a couple of months a year allowing ships to enter the bay but that did not happen in 2013-14. "We had to get fuel in by helicopter which is inadequate for the long-term sustainability of the station," Dr Wooding said. Perhaps they should send for Professor Turkey and the rest of his ship of fools. Antarctic Peninsula Stopped Warming 30 Years Ago | NOT A LOT OF PEOPLE KNOW THAT. By Paul Homewood We are doubtlessly all aware of claims that the Antarctic Peninsula is one of the fastest warming parts of the world.

The implication is clear, that this is global warming in action. Yet the story is not quite all that it appears. Let’s look at the GISS temperature records for Rothera and Faraday, on the west side of the peninsula, and the Argentine stations of Esperanza and Marambio on the east. We can also see from the longer records at Faraday and Esperanza that there was a similar jump in the 1960’s.

Since 1983, there have been ups and downs, notably the drop in the early 1990’s associated with the Pinatubo eruption, but clearly temperatures now are no higher than they were in the mid 1980’s. Indeed, as we see below, the trend since 2000 is flat at Faraday, and falling at Esperanza. Like this: Like Loading... Solar Activity Continues Near 200-Year Low. And Antarctic Sea Ice Drop Caused By Natural Factors.

Von Frank Bosse und Fritz Vahrenholt (Translated and condensed [due to time constraints] by P. Gosselin) Fig. 1: Mean solar activity (blue) compared to the activity of the current cycle (red) and the very similar solar cycle 5 (black). The behavior of the solar polar fields also indicate that the upcoming solar cycle 25 could be as weak as SC 6. According to the current conditions, we could experience a solar minimum that is similar to that experienced during the Dalton Minimum (SC 5, 6 and 7) of 1790 – 1830.

Last month we saw plenty of headlines about this. Fig. 3: Sea ice extent around Antarctica in February compared to 1979 (in %). The dashed line depicts the overall trend, and it remains strongly upward. Fig. 4: Antarctic surface temperature as to GISS. What follows are the sea surface temperatures (SST). Fig. 5: Temperature anomaly of the ocean surrounding Antarctica. Here we recognize the downward trend since the 1990s, followed by a sharp upward spike at the end. 'Remarkable year': What's behind the record low sea ice in Antarctica.

Remember that claim from NSIDC and Walt Meier that the Antarctic ice expansion was due to a ‘processing error’? …never mind | Watts Up With That? Another Antarctic sea ice record set – but excuses abound | Watts Up With That? IPCC gate Du Jour – Antarctic Sea Ice Increase Underestimated by 50% | Watts Up With That?

Manufactured PANIC: projected Antarctic ice shelf melting “may surpass intensities associated with ice shelf collapse” | Watts Up With That? Claim: New Antarctic sea-ice extent due to wind and ‘atmospheric warming’ – what warming? | Watts Up With That? Antarctic Sea Ice Retreats Due To Wind Patterns | NOT A LOT OF PEOPLE KNOW THAT. Bipolar disorder – as in the Arctic, the Antarctic sea ice extent is affected by wind, unless of course it’s ‘climate change’ | Watts Up With That?

Those Stubborn Facts: 35-Year Cooling of South Pole Confirmed By NASA - Antarctica Ice Sheets Safe. Antarctic Peninsula Has Been Cooling For Almost 20 Years, Scientists Confirm | NOT A LOT OF PEOPLE KNOW THAT. Scott and Shackleton logbooks prove Antarctic sea ice is not shrinking 100 years after expeditions | NOT A LOT OF PEOPLE KNOW THAT. Study: Mass Gains of Antarctic Ice Sheet Greater than Losses. Glaciers In Antarctica Advanced During Little Ice Age | NOT A LOT OF PEOPLE KNOW THAT.

The Velocities of Tributary Glaciers to Antarctica's Amery Ice Shelf. An Inconvenient Truth: Few Signs Of Global Warming In Antarctica | NOT A LOT OF PEOPLE KNOW THAT. Low Pressure System Responsible For Lower Antarctic Sea Ice Extent Last Month | NOT A LOT OF PEOPLE KNOW THAT. Antarctic Sea Ice Retreats Due To Wind Patterns | NOT A LOT OF PEOPLE KNOW THAT. World’s largest canyon could be hidden under Antarctic ice sheet | Watts Up With That?

Antarctic Sea Ice Trends in a Supposedly Global Warming World. The Mass Balance of Antarctica's Dronning Maud Land Ice Sheet. A Review of the Record 2013 Southern Hemispheric Sea-Ice Extent. During last warming period, Antarctica heated up 2 to 3 times more than planet average | Scienmag: Latest Science and Health News. New Paper Debunks Ad Hoc ‘Explanation’ That Antarctic Sea Ice Has Been Growing Since ’80s Due To Human Activity. What Emily Shuckburgh Forgot To Tell You | NOT A LOT OF PEOPLE KNOW THAT. ANTARCTIC KRILL DECLINE: Industrial fishing or Climate Change? - Principia Scientific International. Shivering Britain: Little Ice Age could be on its way.