Wednesday, May 5, 2021
Sea level rise is rapid and unstoppable unless Paris Agreement targets met
Saturday, April 10, 2021
Unsettling currents: Warm water flowing beneath Antarctica’s ’Doomsday Glacier'
|The calving front of Thwaites Ice Shelf looking at the ice below the water's surface as seen from the NASA DC-8 on Oct. 16, 2012.|
Data from underneath Thwaites Glacier, also known as the Doomsday Glacier. Story here.
Wednesday, September 30, 2020
Unprecedented mass loss expected for the Greenland Ice Sheet
(With some minor editing by PinP.)
|The edge of the Greenland Ice Sheet. Credit: Jason Briner|
Mass loss from the Greenland Ice Sheet is predicted to be higher in this century than any time in the past 12,000 years. The simulations, published in Nature, are based on high-carbon-emission scenarios and consider the southwestern region of Greenland. The findings add to a body of evidence that suggests that reducing carbon emissions is needed to decrease the contribution of the Greenland Ice Sheet to sea-level rise.
As the Arctic warms, the Greenland Ice Sheet has been losing mass and contributing to sea-level rise. That loss rate has increased dramatically since the 1990s. But are those rates and ones projected for the future unexpected? Or, are they just related to "natural variability?" To answer that question, Jason Briner and colleagues produced high-resolution simulations based on geological observations covering southwestern Greenland for the past 12,000 years that extend continuously into the future up to 2100.
|The Greenland Ice Sheet. Credit: Jason Briner|
The simulations suggest that mass loss from the Greenland Ice Sheet in the twenty-first century will exceed the maximum mass-loss rates from the past 12,000 years. They find the largest losses in the past (between 10,000 and 7,000 years ago) were at rates of around 6,000 billion tonnes per century. That's similar to the estimated rates of the first two decades of this century.
However, future losses are expected to exceed those maximum rates. Projected mass losses for the rest of this century are in the range of 8,800 to 35,900 billion tonnes. Those are based on the lowest and highest greenhouse gas emissions scenarios, respectively - that is, the amount of ice losses this century could reverse 4,000 years of cumulative ice growth and exceed previous mass-loss rates by about fourfold. The authors conclude that unprecedented rates of mass loss will occur unless a low-carbon-emission scenario is followed.
Monday, March 2, 2020
Climate Change: Life’s a beach - a disappearing one!
|A Pexels photo.|
Tuesday, October 29, 2019
Rising sea levels pose threat to homes of 300m people – study
Photo by Christian Ferrer
Tuesday, October 31, 2017
Lancet Study Warns of Global Health Crisis and 1 Billion Climate Refugees by 2050
"We are only just beginning to feel the impacts of climate change." Story here.
Waves crash against the International Airport of Nauro,
a small Pacific island country. Photo - Matt Robertson
Wednesday, September 13, 2017
Global fingerprints of sea-level rise revealed by satellites
Greenland. Photo by Uffe Wilken
Sunday, July 23, 2017
Satellite snafu masked true sea-level rise for decades
Friday, June 30, 2017
Tuesday, June 20, 2017
Angry Oceans...the Second in a Series Looking at the Impact of Climate Change and Sea-Level Rise on Atlantic Canadians. (Video)
Wednesday, June 7, 2017
Thursday, May 18, 2017
Sea level rise will double coastal flood risk worldwide
Sunday, April 16, 2017
Slice of Greenland ice melts into oblivion
Wednesday, March 22, 2017
Tuesday, November 22, 2016
Global sea ice has reached a record low – should we be worried?
Thursday, November 3, 2016
Ghost Forests: How Rising Seas Are Killing Southern U.S. Woodlands
Thursday, March 31, 2016
Scientists Nearly Double Sea Level Rise Projections For 2100
Wednesday, February 24, 2016
Seas Are Rising at Fastest Rate in Last 28 Centuries
Thursday, October 9, 2014
NOAA: Record Antarctic Sea Ice Growth Linked To Its Staggering Loss Of Land Ice
DDT Pollution Dumped off Los Angeles Coast Has Not Broken Down Decades Later, Scientists Find
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