[ RadSafe ] Global Warming

[Brian Riely]

What you wrote does not address your statement that there is "an overall
net decrease" in ice.

Show me a credible report that proves NASA  data for 2012 and 2013 is wrong.


On Thu, May 29, 2014 at 5:08 PM, Brennan, Mike (DOH) <
Mike.Brennan at doh.wa.gov> wrote:

> Just a quick response: I will try to respond more, later.
>
> From the NASA page you cite:
>
> According to a recent study by sea ice scientists Claire Parkinson and
> Donald Cavalieri of NASA's Goddard Space Flight Center, Antarctic sea ice
> increased by roughly 17,100 square kilometers per year from 1979 to 2010.
> Much of the increase, they note, occurred in the Ross Sea, with smaller
> increases in Weddell Sea and Indian Ocean. At the same time, the
> Bellinghausen and Amundsen Seas have lost ice. "The strong pattern of
> decreasing ice coverage in the Bellingshausen/Amundsen Seas region and
> increasing ice coverage in the Ross Sea region is suggestive of changes in
> atmospheric circulation," they noted.
>
> "The year 2012 continues a long-term contrast between the two hemispheres,
> with decreasing sea ice coverage in the Arctic and increasing sea ice
> coverage in the Antarctic," Parkinson added. "Both hemispheres have
> considerable inter-annual variability, so that in either hemisphere, next
> year could have either more or less sea ice than this year. Still, the
> long-term trends are clear, but not equal: the magnitude of the ice losses
> in the Arctic considerably exceed the magnitude of the ice gains in the
> Antarctic."
>
> On their Arctic Sea Ice News and Analysis blog, scientists from the
> University of Colorado wrote: "Comparing winter and summer sea ice trends
> for the two poles is problematic since different processes are in effect.
> During summer, surface melt and ice-albedo feedbacks are in effect; winter
> processes include snowfall on the sea ice, and wind. Small changes in
> winter extent may be a more mixed signal than the loss of summer sea ice
> extent. An expansion of winter Antarctic ice could be due to cooling,
> winds, or snowfall, whereas Arctic summer sea ice decline is more closely
> linked to decadal climate warming."
>
> Also, bear in mind that climate change is not the same as universal global
> warming.
>
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu [mailto:
> radsafe-bounces at health.phys.iit.edu] On Behalf Of Brian Riely
> Sent: Thursday, May 29, 2014 12:25 PM
> To: The International Radiation Protection (Health Physics) Mailing List
> Subject: Re: [ RadSafe ] Global Warming
>
> According to NASA
>
>
>
> *In late September 2013, the ice surrounding Antarctica reached its annual
> winter maximum and set a new record. Sea ice extended over 19.47 million
> square kilometers (7.51 million square miles) of the Southern Ocean. The
> previous record <http://earthobservatory.nasa.gov/IOTD/view.php?id=79369>
> of 19.44 million square kilometers was set in September 2012.*
>
>
>
> http://earthobservatory.nasa.gov/IOTD/view.php?id=82160
>
>
>
> So the previous record was set in September 2012, the current record was
> set in September 2013, and It would not be surprised if a new record is set
> in September 2014 since according to Der Spiegel
>
>
>
> *Never before has there been so much ice at this time of year since
> measurements began.*
>
>
>
> This time in the article refers to April 2014.
>
>
>
> I assume that you find NASA data credible.
>
>
>
> I would encourage you to be at least as skeptical of the sources that
> support your preferred position as you are those that refute it
>
>
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