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Re: [Phys-l] global temperatures



The polar ice cover varies during the year quite a bit. The satellite images allow for comparisons at the same time each year.

The minimum ice cover in the summer months has decreased dramatically in these pictures.

Here's a couple of images that show that.

http://irascibleprofessor.com/comments-04-22-07.htm

Dr. Mark H. Shapiro
Professor of Physics, Emeritus
California State University, Fullerton
Phone: 714 278-3884
FAX: 714 278-5810
email: mshapiro@fullerton.edu
web: http://physics.fullerton.edu/~mshapiro
travel and family pictures:
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CSU-ERFA Website: http://csuerfa.org


-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Richard Tarara
Sent: Saturday, April 04, 2009 3:48 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] global temperatures

No..there was a thread--maybe it was of PhysSoc about how the ice was being
measured--from photos, which don't show thickness. I forget all the details
now, just that there was controversy over how the amount of ice was being
determined. Someone had offered that the ice was 'gone' but that certainly
is not yet the case. Again, the 'controversy' that was being discussed (and
I offered this just as an aside anyway) was over the data
collection--basically how reliable IS the data. My point only being that
even the 'data' in the complex issue is sometimes in question. I see that
John Sohl has just offered a partial solution to the data question, but a
solution still awaiting a launch window. Does this mission require the
Shuttle--if so, it is probably dead. If not, what's the hang up?


Rick


----- Original Message -----
From: "John Mallinckrodt" <ajm@csupomona.edu>
To: "Forum for Physics Educators" <phys-l@carnot.physics.buffalo.edu>
Sent: Saturday, April 04, 2009 5:45 PM
Subject: Re: [Phys-l] global temperatures


Rick,

The only news I've heard recently is that the melting appears to be
occurring much faster than any of the models had predicted, but that
wouldn't seem to constitute a "controversy" in the context of this
discussion. Is that what you are referring to?

John Mallinckrodt
Cal Poly Pomona

On Apr 4, 2009, at 2:21 PM, Rick Tarara wrote:


----- Original Message -----
From: "John Denker" <jsd@av8n.com>

On 04/04/2009 08:02 AM, Rick Tarara wrote in part:
We need to keep the questions clear here. The polar melting (and
there
has
been some controversy on that lately as well), [1]

Controversy? There's also controversy about evolution, and
controversy
about whether astronauts landed on the moon, and controversy about
whether Elvis is dead. Controversy is not evidence. Please let's
stick to the evidence.


The Controversy is exactly over the evidence--just how much of the
polar
ice has melted.

But if what one gets on this list are flippant and derogatory
responses......................

rwt

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_______________________________________________
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_______________________________________________
Forum for Physics Educators
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https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l