Antarctica Melting Three Times as Fast as a Decade Ago

Photo: BARON REZNIK/FLICKR

A new study from the journal Nature makes a terrifying observation — the rate at which Antarctic ice is melting has tripled from only a decade ago. This is significant as more than 60 percent of the freshwater on Earth is locked in Antarctica’s ice sheets. The continent has lost nearly three trillion tons of ice since 1992.

The New York Times reports that the continent is now melting so fast, scientists say, that it will contribute six inches (15 centimeters) to sea-level rise by 2100. That is at the upper end of what the Intergovernmental Panel on Climate Change has estimated Antarctica alone could contribute to sea level rise this century.

Antarctica is not the only contributor to sea level rise. Greenland lost an estimated 1 trillion tons of ice between 2011 and 2014. And as oceans warm, their waters expand and occupy more space, also raising sea levels. The melting ice and warming waters have all been primarily driven by human emissions of greenhouse gases.

Antarctica’s ice sheet is melting 3 times faster than before

Comments

Antarctica Melting Three Times as Fast as a Decade Ago — 9 Comments

  1. So how much of that is because of scientists that want to live there creating heat absorbing shelters and mountains of trash? All of those dwellings the scintists need that require heat must have some adverse effect on the climate. Plus needing supplies from turbo jet powered C-130’s. After all, a jet engine is nothing more than a turbine powered got air furnace. They should be looking at what they are doing that is very destructive to that area.

  2. …and their contrails affect global warming in a bad way.
    Shut down all flights two days a week and notice the difference, as was proved after twin towers.
    Why are we in such a hurry to get everywhere anyway – chill and go by boat or ship, preferably using sails.

  3. No turbo jet powered C130 in Antarctica!

    The Lockheed C-130 Hercules is a four-engine turboprop military transport aircraft designed and built originally by Lockheed (now Lockheed Martin). Capable of using unprepared runways for takeoffs and landings, the C-130 was originally designed as a troop, medevac, and cargo transport aircraft.
    en.wikipedia.org/wiki/Lockheed_C-130_Hercules

  4. Researchers discover volcanic heat source under major Antarctic glacier
    June 25, 2018, University of Rhode Island
    phys.org/news/2018-06-volcanic-source-major-antarctic-glacier.html

  5. Willy, waste heat from our cultural activities is several orders of magnitude lower than increased retention of energy by our addition of CO2 to the atmosphere.

    Details here:
    https://skepticalscience.com/waste-heat-global-warming.htm

    Phil, the volcanic approach to dodging responsibility just doesn’t pencil out. Here you can find attempts to argue that increases -and- decreases in volcanic activity are scapegoats for our own activities, an obvious impossibility but fairly typical of misdirection thrown against the wall by folks with a financial interest in fossilizing our technology:
    https://skepticalscience.com/search.php?Search=volcanoes&x=0&y=0

    Obviously

  6. Phil, the various contributions to GW are not “news,” just general physics, geophysics and maths. A volcano beneath the Antarctic ice sheet indeed contributes warmth, but at a vanishing small scale in the larger scheme of things.

    Helpful papers:
    Thermal power output of typical volcanoes
    https://www.higp.hawaii.edu/~wright/ijrs29.pdf

    Energy input to Antarctic ice shelves via bottom warming:
    https://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00834.1

    You can see the problem with ascribing a continental-scale phenomenon requiring an enormous amount of energy to a single feature of that continent only able to dissipate a tiny fraction of the power required to drive observed changes.