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A recent study by NASA seems to contradict some of the currently accepted knowledge about global warming and glaciers. It found that increased ice melting in Antarctica is offset by increased snowfall, meaning that the continent's glaciers are posting a net gain in mass, and are not contributing to rising sea levels.
Contrary to some sensationalist headlines about the "end of global warming", the study's authors urged caution.
"We're essentially in agreement with other studies that show an increase in ice discharge," in other parts of the continent, [Jay] Zwally said.
"Our main disagreement is for East Antarctica and the interior of West Antarctica; there, we see an ice gain that exceeds the losses in the other areas," he explained in a NASA announcement.
Editors Note: As best as I can tell, this is the NASA study referenced in the article above. Note that it is from October, 2014.
(Score: 5, Interesting) by frojack on Tuesday November 03 2015, @08:12PM
It seems like an odd study, it mentions no clear publication date.
The full text [ingentaconnect.com] is available on line
and contains only the statement:
MS received 9 May 2015 and accepted in revised form 19 September 2015
Hot on the heels of the above study comes the worry over the West Antarctic ice [phys.org] being in a state of irreversible retreat.
in this report the author addresses the disagreement by saying:
According to climatologist Michael Mann, who was not involved in either study, the use of older satellite data could be the cause for the disconnect.
"It sounds to me as if the key issue here is that the claims are based on seven-year-old data, and so cannot address the finding that Antarctic ice loss has accelerated in more recent years,"
There was another news item [natureworldnews.com] that mentioned the melting in Greenland was found to be NOT related to soot/ash
on the snow. Previous detection of lowered albedo was apparently the result of degrading optics in satellites.
No, you are mistaken. I've always had this sig.
(Score: 3, Insightful) by Reziac on Wednesday November 04 2015, @02:41AM
That's an interesting point. So if sats' optics are degrading... what other components are also degrading, and which other measurements might be therefore inaccurate??
And there is no Alkibiades to come back and save us from ourselves.
(Score: 5, Interesting) by captain normal on Wednesday November 04 2015, @05:31AM
https://www.nasa.gov/feature/goddard/nasa-study-mass-gains-of-antarctic-ice-sheet-greater-than-losses [nasa.gov]
https://www.nasa.gov/feature/goddard/2015-antarctic-maximum-sea-ice-extent-breaks-streak-of-record-highs [nasa.gov]
Don't read the headlines. Read the whole articles.
When life isn't going right, go left.