Archives par mot-clé : Antarctic

Evidence for Little Ice Age in Antarctica

by UC Santa Cruz Newscenter, August 31, 2017 in WUWT


Changes in the sources of nitrogen and the composition of the phytoplankton community are more likely to account for the differences seen in the isotope data, Huckstadt said. “It looks more like a shift at the base of the food web, probably related to the transition from the Little Ice Age to current conditions, causing changes in the phytoplankton community,” he said.

See also: « Here we present new data from the Ross Sea, Antarctica, that indicates surface temperatures were ~ 2 °C colder during the LIA, with colder sea surface temperatures in the Southern Ocean and/or increased sea-ice extent, stronger katabatic winds, and decreased snow accumulation. »

Discovery of Additional West Antarctic Volcanoes Furthers Natural over Man-Made Warming

by James E Kamis, August 23, in ClimateChangeDispatch


The now three-year-old Plate Climatology Theory is on the brink of total confirmation. This is the result of two just-released and very telling Antarctic research studies. Combining the results of these two studies with the massive amounts of pre-existing data it is possible to show with very high certainty that melting of West Antarctic glaciers is directly related to bedrock heat flow and chemically charged heated fluid flow from the 5,000-mile-long West Antarctic Rift System (see Figure 1).

Study validates East Antarctic ice sheet to remain stable even if western ice sheet melts

by Indiana University, August 17, 2017 in ScienceDaily


« There are models that predict that the interior of the East Antarctic ice sheet wouldn’t change very much, even if the West Antarctic ice sheet was taken away, » Licht said. According to these models, even if the ice sheet’s perimeter retreats, its core remains stable.

See also here and here

Record-shattering 2.7-million-year-old ice core reveals start of the ice ages

by Paul Voosen, August 15, 2017


Scientists announced today that a core drilled in Antarctica has yielded 2.7-million-year-old ice, an astonishing find 1.7 million years older than the previous record-holder

(…)

If the new result holds up, says Yige Zhang, a paleoclimatologist at Texas A&M University in College Station, the proxies will need to be recalibrated. “We have some work to do.”

Scientists discover 91 volcanoes below Antarctic ice sheet

by Robin McKie, August 12, 2017 The Guardian


The Edinburgh volcano survey, reported in the Geological Society’s special publications series, involved studying the underside of the west Antarctica ice sheet for hidden peaks of basalt rock similar to those produced by the region’s other volcanoes. Their tips actually lie above the ice and have been spotted by polar explorers over the past century.

See also here and here

Des scientifiques découvrent 91 nouveaux volcans sous les glaciers de l’Antarctique

Swiss Daily, German Scientist Slam Reporting U of Exeter Antarctic Findings… “An Abuse Of Science”!

by P  Gosselin, July 21, 2107 in NoTricksZone


A commentary appearing here at the Swiss Baseler Zeitung (BAZ) slams a recently published British paper on moss growth in Antarctica that gave the impression the south polar continent was greening up due to climate change.

The BAZ writes that the paper is an example of “how today science is manipulated and used for political purposes“.