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Science / Re: Mauna Loa CO2
« on: February 04, 2015, 04:32:50 PM »
ASLR: Interesting, thanks!

Science / Re: Mauna Loa CO2
« on: February 04, 2015, 03:10:32 PM »
Forgive me if this has been discussed...

Looking at the Mauna Loa CO2 from last year and this year, the weekly/monthly rise/decline cycle seems fairly smooth, except both years there is a kind of hiccup from January to February.  Is this just noise or is there an underlying mechanism?

Arctic sea ice / Re: Stupid Questions :o
« on: June 09, 2014, 06:19:10 PM »
I have a stupid question.  When you go to the DMI Centre for Ocean Ice, and look at the historical "Daily Mean Temperatures for 80N":

The winters seem to be a lot more "spiky", i.e. departures from the mean are often 10 degrees K +/-.  However during the summer, departures from the mean are much smaller.  Why is this? 

I suppose I can guess that even during the summer, temps don't get much above freezing because, well, there's mostly just ice at 80N and "above", even with the ice coverage trending downward. 

Still,  the  area N of 80N is not covered in ice during June and July (right?), so I would expect some spikes up to maybe 280 Kelvin here and there.  Is the reason that water is most of what's N of 80N, and the water is going to stay a few degrees above freezing, and therefore limits the temps to around 275K for the most part? 

Arctic sea ice / Re: Stupid Questions :o
« on: May 22, 2014, 08:59:29 PM »
Thanks all, this was helpful. 

Arctic sea ice / Re: Stupid Questions :o
« on: May 21, 2014, 07:58:05 PM »
I have a stupid question.  Can one think of "cold" (or maybe "cold air") as an entity that is conserved? E.g., if the U.S. Midwest is having an extra-cold winter, does that mean we have "more" cold air than usual, and so some other place has LESS cold air than usual, because the total amount of cold air remains roughly constant?  Is this why Siberia had a warmer winter this past year?

Or could every place  in the world have "more" cold air than normal (here I am assuming no volcanic activity, etc.)?

(I guess with the understanding that the total "mass" of cold air is decreasing from year to year due to AGW?)


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