Significant changes have taken place on Denman Glacier and Shackleton Ice Shelf. The floating section of the glacier experiences vigorous ice melt in contact with the ocean, which suggests the presence of Circumpolar Deep Water. However, there is no historical oceanographic data near the glacier. https://www.pnas.org/content/116/4/1095 Denman Glacier, located in East Antarctica retreated about 5…
A new study suggests that the East Antarctica Ice Sheet in the Wilkes Basin may have completely disappeared around 400,000 years ago. Currently the Wilkes Basin is only hold back by the Cook, Mertz, and the Ninnis glacier – the Cook Glacier shelf has already collapsed. There is also the Totten Glacier farther to the…
In this talk from October 2019, Eric Rignot suggests the possibility of 4 meters of sea level rise per century. Just extrapolating based on Antarctic marine glaciers retreating would yield the figure Notes a new model with results in the ballpark Notes the figure is in agreement with past sea level rise estimates Not mentioned…
It has long be debated, estimated, projected when the Arctic Ocean becomes essentially ice free, in terms of the so called Blue Ocean definition – typically defined as less than 1 million square kilometers of ice, or less than 10% of the basin. YALE: Relentless high pressure and cloud-free skies have allowed the Arctic Ocean’s sea…
A Never-Before-Seen Event Is Collapsing an Ice Sheet in the Russian Arctic – Will ice stream collapse accelerate Sea Level Rise super extreme? Scientists have discovered a rare event, a collapsing ice sheet. With already multi meter sea level rise estimates from global warming, this highlighted event may accelerate trends further, with serious implications for…
How humans discovered sea level rise – based on motion pictures, with the scope on Antarctica. Footage spanning from 1948 up to 1990.
Published in 1956 for American television by the California Academy of Sciences. Bernard Hubbard explains how glaciers retreat, he mentions how since 1857 glaciers recede worldwide. Hubbard also explains the ice albedo effect, and how glaciers disintegrate. This program is devoted to glaciers, and also includes a promo for the Academy of Sciences. SPEAKER Bernard…
Features Arctic/Polar Research footage ranging from 1956, 1969, 1975, 1981, 1982, 1985, 1991, and more recent items. CREDITS U.S. STATE DEPARTMENT The Global Implications of Arctic Climate Change https://www.youtube.com/watch?v=ZDhIBEiJMdQ SHELL Oil’s Stark Climate Change Warning from 1991 https://climatestate.com/2019/07/19/the-climate-warning-from-the-early-1980s/ and https://vimeo.com/359293634 “Arctic Amplification” of Global Warming | Prof. Philip Wookey | TEDxHeriotWattUniversity https://www.youtube.com/watch?v=5a5DJVcSh8A NASA Earth Science…
Flood basalts and mass extinctions – ancient hyperthermals as analogs for anthropogenic climate change. Oceanic Anoxic Event (OAE) and mass extinctions are considered to be hyperthermals – usually associated with flood basalt eruptions.[2] Phases of rapid global warming, known collectively as hyperthermals.[1] Flood basalts are a subset of large igneous provinces (LIPs), the terms flood basalt…