Re: Record low temperatures over the North Pole

jgreenfield_at_seol.net.au
Date: 02/05/05 

Date: 4 Feb 2005 20:42:42 -0800

Matt Giwer wrote:
> jgreenfield@seol.net.au wrote:
> > Matt Giwer wrote:
> >
> >>CWatters wrote:
> >>
> >>>"ošin" <ošin@ragnarok.com> wrote in message
> >>>news:O-ydnXCxutxKRGLcRVn-hA@whidbeytel.com...
> >>
> >>>>It leads to more extremes? By what mechanisms?
> >>
> >>>More energy = more activity. It's why Glider pilots like summer!
> >>
> >
http://www.msc-smc.ec.gc.ca/education/scienceofclimatechange/understanding/ccd/ccd_9801/sections/4_e.html
> >
> >>>Extreme Weather and Climate Change
> >>>Greenhouse Warming and Weather Extremes
> >>
> >>>Selected quotes:
> >>
> >>>"...higher temperatures not only increase evaporation and
transpiration but
> >>>also raise the air's capacity to hold moisture. Consequently, more
moisture
> >>>will be available in the atmosphere to fall as rain and snow"
> >>
> >> Sounds like an improvement to me. The predictions of water wars,
shortages of
> >>drinking and agricultural water are common. Bad news for the
melters though,
> >>glaciers change size by the ratio of winter precipitation to summer
melting.
> >>More snow and maybe the glaciers grow.
>
> >>>"Hurricane intensity could also be affected by a warmer
climate.That is
> >>>because the theoretical limit for hurricane strength depends upon
the extent
> >>>of the local energy imbalance between the atmosphere and the
ocean."
>
> > Aren't the most "energetic" winds in the Antarctic? (wind speed
> > record/most sustained periods of high winds)
>
> The question was about hurricanes, transient storm systems, not the
antarctic. Apples and oranges.
>
> >> It is not clear how that differential increases. We have people
swearing the
> >>oceans are getting warmer. And temperature differential starts from
absolute
> >>zero so 1 degree is about 1/3 of 1%. Hurricanes get their energy
from warm
> >>waters not cold.
>
> > Melbourne had its coldest day in history yesterday, and its largest
> > 24hr rainfall!

Correction: "coldest Feb day"
>
> And up hear the drought in the American southwest was broken last
month. The drought was
> "obviously" caused by global warming.

Maybe the energy in the earth's water/air systems is being distributed
differently,
without net change in the total. (even the continents are moving :-)
 )
As for tying up carbon in forestry, what goes
up........(bushfire!)......

Jim G

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