Arctic

New Reconstructions Show It Is Colder Now Than At Any Time In The Last 10,000 Years

New Reconstructions Show It Is Colder Now Than At Any Time In The Last 10,000 Years

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Share this…FacebookTwitterScientists continue to find regions of the world where modern “global” warming has not occurred. Sea surface temperatures (SSTs) in the South Atlantic (south of South Africa) and Southern Ocean (New Zealand) are colder today than they have been at any time in the last 12,500 years (Shuttleworth et al., 2021). SSTs were multiple […]

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New Study: High Arctic Canada's Early Holocene Winter Air Temperatures Were '6-8°C Warmer Than Today'

New Study: High Arctic Canada’s Early Holocene Winter Air Temperatures Were ‘6-8°C Warmer Than Today’

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Share this…FacebookTwitter The Canadian Arctic’s surface temperatures have been up to 15 to 25°C warmer than today during the geologically recent Holocene, Pleistocene, and Pliocene epochs. Scientists (Campbell-Heaton et al., 2021) assessing the ratio of winter temperature at the ground surface to that in the air (the “freezing n-factor”) suggest ground surface winter temperatures now […]

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Reality Jolt: Arctic September Minimum Sea Ice Extent Trend RISING Over Past 10 Years - Norwegian Data

Reality Jolt: Arctic September Minimum Sea Ice Extent Trend RISING Over Past 10 Years – Norwegian Data

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Share this…FacebookTwitterNorwegian data show September minimum Arctic sea ice has risen over the past 10 years, contradicting earlier predictions of a death spiral By Kirye and Pierre Friday NTZ posted on Arctic sea ice extent. This year Arctic sea ice has just about reached its minimum. and so we plot the new data (see below). […]

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Stalled: September Arctic Sea Remains Surprisingly Stable Over Past Decade, "Long Way From Predicted "Ice Free"

Stalled: September Arctic Sea Remains Surprisingly Stable Over Past Decade, “Long Way From Predicted “Ice Free”

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Share this…FacebookTwitterThis year’s Arctic sea ice minimum reaches third highest level in a decade, latest data show. Die kalte Sonne here presents its latest climate video. The first part looks at this year’s Arctic sea ice melt season. Now that it’s September, sea ice extent has just about reached its minimum for the year and […]

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Scientists Increasingly Agree The Last Ice Age Temperatures Were ~3-4°C Warmer Than Today's

Scientists Increasingly Agree The Last Ice Age Temperatures Were ~3-4°C Warmer Than Today’s

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Share this…FacebookTwitterIn a “major revision” to the “long-standing view,” scientists are increasingly concluding the last glacial had summers “several degrees” warmer than today, with climate conditions warm enough to allow year-round grass grazing by horses, antelope, gazelle…in Siberia, Alaska, and north of the Arctic circle. Multiple degrees warmer glacial temperatures pervaded both hemispheres. The “long-standing […]

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New Study: Retreating East Greenland Glaciers Uncover Plant Debris Dating To The 16th - 17th Centuries

New Study: Retreating East Greenland Glaciers Uncover Plant Debris Dating To The 16th – 17th Centuries

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Share this…FacebookTwitterExposed moss and willow shrubs buried beneath today’s receding East Greenland glaciers can be dated to 400 to 500 years ago, suggesting this period (the early Little Ice Age) was as-warm or warmer than today. It is widely accepted that Greenland’s surface temperatures were several degrees warmer (McFarlin et al., 2018, Axford et al., […]

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Large Herbivores Grazed On Grass Year-Round In The Arctic When CO2 Was 180 ppm. Now They Cannot.

Large Herbivores Grazed On Grass Year-Round In The Arctic When CO2 Was 180 ppm. Now They Cannot.

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Share this…FacebookTwitterA new study reports that during Pleistocene cold stages, when CO2 concentrations dipped below 200 ppm, Arctic Siberia had much more fertile soil and productive vegetation than exists today. Extensive grassland ecosystems could sustain year-round grazers: horses, mammoths, bison. Today this region’s large herbivores must be fed by humans to secure survival due to […]

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Seal Numbers Increased 700% Since The 1970s - But Models Project Future Declines Due To Sea Ice Loss

Seal Numbers Increased 700% Since The 1970s – But Models Project Future Declines Due To Sea Ice Loss

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Share this…FacebookTwitterSea ice has been declining in the Canadian North Atlantic since the 1970s, and yet the harp seal population has been estimated to have risen from a little over 1 million in 1971 to about 7.5 million in 2012 to 2019. But model projections suggest the seal populations will decrease in the future due […]

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Scientists Again Affirm Natural Warmings Of  5–16 °C In 'A Few Decades' Can Be 'Entirely Unforced'

Scientists Again Affirm Natural Warmings Of 5–16 °C In ‘A Few Decades’ Can Be ‘Entirely Unforced’

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Share this…FacebookTwitterA new study asserts that when Greenland naturally warms by multiple degrees per decade, this “abrupt climate variability can result entirely from unforced or noise-induced oscillations of the coupled atmosphere-ice-ocean system.” This means the recent modest climate changes for Greenland may easily fall within the scope of an unforced natural variability pattern. In the […]

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Rainforests Near The South Pole And Summers 38°C Warmer Than Today During The Age Of Dinosaurs

Rainforests Near The South Pole And Summers 38°C Warmer Than Today During The Age Of Dinosaurs

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Share this…FacebookTwitterFossilized evidence of temperate rainforests only hundreds of kilometers from Antarctica’s South Pole (82°S) has been uncovered. It suggests the warmest mean month was 18.5°C about 90 million years ago. Today the warmest mean month for this location is about -20°C. Image Source: EarthSky (press release for Klages et al., 2020) Despite rapidly rising […]

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Tree Remains Found Buried Beneath Today's Glaciers Date To The Warmer-Than-Today Medieval Warm Period

Tree Remains Found Buried Beneath Today’s Glaciers Date To The Warmer-Than-Today Medieval Warm Period

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Share this…FacebookTwitterA new study (Kullman, 2021) suggests ~9000-year-old tree remains can be found buried in “currently empty snow hollows and glacier cirques” at elevations 600-700 m higher than where trees can grow today, implying a >3°C warmer Early Holocene climate. Treelines were still 75-100 m higher during the Medieval Warm Period…and even during the 15th […]

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March Sea Ice: Arctic Stable 16 Years, Gains 504,000 Sq Km Since 2017! Antarctic Above Mean!

March Sea Ice: Arctic Stable 16 Years, Gains 504,000 Sq Km Since 2017! Antarctic Above Mean!

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Share this…FacebookTwitterThough it has dropped since its peak in 1979, Arctic sea ice extent in March has remained stable since 2005. There are two months that are of particular interest in the Arctic: September, when sea ice reaches its minimum, and March, when it reaches its maximum. Gains 504,000 sq km. Today we look at […]

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