Let's get back to birds. This is a birding listserve. I have studied this at
length and disagree. I do believe in man-made global warming but I don't
believe it causes record cold. The climate has warmed 1C so we still can see
record cold with our current climate. The frequency is less though, not more.
Most meteorologists I know also don't agree that record cold is consistent with
global warming. Some climatologists do. If you want to discuss further, please
direct the emails offline and not on the entire listserve. I would be happy to
discuss this issue (again offline) with the Dept Atmospheric Science folks at
Cornell too if you want. I know most of them well. They are good people and
also very intelligent.
BestDave Nicosia
On Wednesday, September 16, 2020, 08:41:37 PM EDT, John Luther Cisne
<[email protected]> wrote:
Record cold over North America is indeed consistent with global warming. It is
a regional consequence of the global phenomenon.
To explain it simply (as I was supposed to do in the elementary course I taught
of years and years, “Evolution of the Earth and Life”), the principle of the
thing is that Arctic Basin warms not only by importing warm air from the south,
mainly over oceans, but also by exporting cold air to the south, mainly over
continents. Export of air from the north makes space for import of air from
the south, so to speak. For now, at least, the export of cold air from the
Arctic is concentrated over North America.
Certain of my colleagues in the Department Earth and Atmospheric Sciences will
be able to give everyone a far better and more detailed explanation.
From: <[email protected]> on behalf of "Kevin J.
McGowan" <[email protected]>
Reply-To: "Kevin J. McGowan" <[email protected]>
Date: Wednesday, September 16, 2020 at 8:03 PM
To: david nicosia <[email protected]>, Peter Saracino
<[email protected]>, Jody Enck <[email protected]>
Cc: "[email protected]" <[email protected]>, CAYUGABIRDS-L
<[email protected]>
Subject: RE: [cayugabirds-l] New Mexico Mass Motality
“Record cold of this magnitude is not consistent with global warming. “
Why not? Global warming doesn’t mean warming happens all over the globe evenly.
I’ve been watching our area in the northeast for the last decade, thinking
mostly about Snowy Owl incursions, and I’ve noticed strange changes in the
distribution of cold across the arctic, perhaps changes in the “polar vortex”
that seem to isolate the NE as a cold spot while Alaska warms up. The last ten
years have shown Ithaca regularly with winter temperatures lower than Nome,
Alaska. That isn’t right.
Global warming at the poles doesn’t mean every place warms up, it means that
the consistencies of weather patterns we could count on could be disrupted.
Colder Ithaca winters and heat waves in Alaska are totally consistent with a
global warming scenario. Freak arctic blasts into the rockies while the north
pole melts also points to something freakishly abnormal happening, totally
consistent with global warming.
Kevin
From: [email protected]
<[email protected]>On Behalf Of david nicosia
Sent: Wednesday, September 16, 2020 7:46 PM
To: Peter Saracino <[email protected]>; Jody Enck <[email protected]>
Cc: [email protected]; CAYUGABIRDS-L <[email protected]>
Subject: Re: [cayugabirds-l] New Mexico Mass Motality
The western U.S has a history of extreme temperature changes. This event ranks
number 3 for the biggest temperature swing in history and it occurred during
fall migration. Most of the other big swings in temperature
occurred in the winter. What is dramatic is how cold it got and the early snows
that fell. Temperatures in parts of the Rockies fell to 9F with winds over 50
mph. That is insanely cold for so early in the season. The Arctic high pressure
that came across the Rockies has denser and heavier air which flows downslope
into California, and Oregon warming by compression leading to high winds and
VERY dry conditions. This fuels the tremendous fires. So in a sense it is the
brutal unseasonable cold air that is the real cause of the conditions that
caused the fires. I assume the fires, combined with temperatures in the 80, 90s
and 100s dropping to the teens 20s and 30s in many areas in the Rockies with
early snows was too much for many birds to handle causing the high mortality
rates. I have read that people are blaming climate change on this. I don't see
it because it is the intense cold that really fueled the fires in CA and OR and
probably had a negative effect on the birds. Record cold of this magnitude is
not consistent with global warming.
On Wednesday, September 16, 2020, 05:18:09 PM EDT, Jody Enck
<[email protected]> wrote:
Thank, Pete, for passing along the Guardian article. Additional information
has been forthcoming recently. Hypotheses include movements related to smoky
conditions in some states, coupled with those weird temperature swings recorded
last week (90 to 100 F one day and below freezing, with snow, the next day).
Seems less likely to be a nefarious even (e.g., poisoning) than something more
likely caused by challenging environmental factors.
I hope more information comes out soon.
Jody W. Enck, PhD
Conservation Social Scientist, and
Founder of the Sister Bird Club Network
607-379-5940
On Wed, Sep 16, 2020 at 5:03 PM Peter Saracino <[email protected]> wrote:
https://www.theguardian.com/environment/2020/sep/16/birds-falling-out-of-the-sky-in-mass-die-off-in-south-western-us-aoe
On Tue, Sep 15, 2020, 6:47 PM Tom <[email protected]> wrote:
I just learned of the mass mortality of migrating birds in New Mexico. I read
a CNN report. Is there any new information on the cause? They’re talking
hundreds of thousands, even millions.
Tom V
Sent from my iPhone
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