Accuweather
http://global-warming.accuweather.co..._would_sh.html

David Christainsen - Meteorologist

David wrote:
Accuweather
http://global-warming.accuweather.co..._would_sh.html

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

"David" wrote in message
...
Accuweather
http://global-warming.accuweather.co..._would_sh.html

David Christainsen - Meteorologist

We laready have that , it's called precession of the earth axis.

On Feb 12, 11:01*am, Peter Franks wrote:
David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w...

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. However -

Adapting to our changing climate
www.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern
is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of
these processes may already be occurring. However,
our current understanding is too limited to estimate
how much faster sea level could rise."

-----

RealClimate
http://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according
to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming
of the West Antarctica Ice Sheet, whose melting could be
rapid (”requiring a century or less and causing a sea level
rise of 5 to 6m” that “would flood 25% of Louisiana and
Florida”).

David Christainsen - Meteorologist

On Feb 12, 10:59*am, David wrote:
On Feb 12, 11:01*am, Peter Franks wrote:

David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w....

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. *However -

Adapting to our changing climatewww.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern

waesel word count: "the major concern" - 3

is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of

"are observations" - 2 - total 5

these processes may already be occurring. However,

"may already be occurring" - 3 - total 8

our current understanding is too limited to estimate
how much faster sea level could rise."

Cool. An admission if complete ignorance.


-----

RealClimatehttp://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according

"predicts" - 1 - total 9

to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming

"would be" = 2, total 11

of the West Antarctica Ice Sheet, whose melting could be
rapid (”requiring a century or less and causing a sea level

"could be rapid" = 3, total 14

rise of 5 to 6m” that “would flood 25% of Louisiana and
Florida”).

David Christainsen - Meteorologist


"would flood" = 2, total 16

Neat stuff.

wrote:
On Feb 12, 10:59 am, David wrote:
On Feb 12, 11:01 am, Peter Franks wrote:

David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w...

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. However -

Adapting to our changing climatewww.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern

waesel word count: "the major concern" - 3

is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of

"are observations" - 2 - total 5

these processes may already be occurring. However,

"may already be occurring" - 3 - total 8

our current understanding is too limited to estimate
how much faster sea level could rise."

Cool. An admission if complete ignorance.


-----

RealClimatehttp://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according

"predicts" - 1 - total 9

to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming

"would be" = 2, total 11

of the West Antarctica Ice Sheet, whose melting could be
rapid (”requiring a century or less and causing a sea level

"could be rapid" = 3, total 14

rise of 5 to 6m” that “would flood 25% of Louisiana and
Florida”).

David Christainsen - Meteorologist


"would flood" = 2, total 16

Neat stuff.

Denialist for "I cannot refute a word you said."

On Feb 12, 1:28*pm, "marcodbeast" wrote:
wrote:
On Feb 12, 10:59 am, David wrote:
On Feb 12, 11:01 am, Peter Franks wrote:

David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w....

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. However -

Adapting to our changing climatewww.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern

waesel word count: "the major concern" - 3

is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of

"are observations" - 2 - total 5

these processes may already be occurring. However,

"may already be occurring" - 3 - total 8

our current understanding is too limited to estimate
how much faster sea level could rise."

Cool. An admission if complete ignorance.

-----

RealClimatehttp://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according

"predicts" - 1 - total 9

to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming

"would be" = 2, total 11

of the West Antarctica Ice Sheet, whose melting could be
rapid (”requiring a century or less and causing a sea level

"could be rapid" = 3, total 14

rise of 5 to 6m” that “would flood 25% of Louisiana and
Florida”).

David Christainsen - Meteorologist

"would flood" = 2, total 16

Neat stuff.

Denialist for "I cannot refute a word you said."- Hide quoted text -

- Show quoted text -

Idiotspeak for "I'm a troll".

wrote:
On Feb 12, 1:28 pm, "marcodbeast" wrote:
wrote:
On Feb 12, 10:59 am, David wrote:
On Feb 12, 11:01 am, Peter Franks wrote:

David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w...

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the
"complete collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. However -

Adapting to our changing
climatewww.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern

waesel word count: "the major concern" - 3

is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of

"are observations" - 2 - total 5

these processes may already be occurring. However,

"may already be occurring" - 3 - total 8

our current understanding is too limited to estimate
how much faster sea level could rise."

Cool. An admission if complete ignorance.

-----

RealClimatehttp://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according

"predicts" - 1 - total 9

to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming

"would be" = 2, total 11

of the West Antarctica Ice Sheet, whose melting could be
rapid (”requiring a century or less and causing a sea level

"could be rapid" = 3, total 14

rise of 5 to 6m” that “would flood 25% of Louisiana and
Florida”).

David Christainsen - Meteorologist

"would flood" = 2, total 16

Neat stuff.

Denialist for "I cannot refute a word you said."- Hide quoted text -

- Show quoted text -

Idiotspeak for "I'm a troll".

ROFLMAO Who's a troll?

wrote:
On Feb 12, 10:59 am, David wrote:
On Feb 12, 11:01 am, Peter Franks wrote:

David wrote:
Accuweather
http://global-warming.accuweather.co...of_ice_sheet_w...

David Christainsen - Meteorologist

What increase in mean global temperature would lead to the "complete
collapse of the West Antarctica Ice Sheet"?

I cannot answer your question specifically. However -

Adapting to our changing climatewww.atse.org.au/uploads/Focus149.pdf

"For the West Antarctica Ice Sheet, the major concern

waesel word count: "the major concern" - 3

is that warmed ocean water is penetrating beneath
the ice sheet that is grounded below sea level, melting
it at its base. There are observations indicating both of

"are observations" - 2 - total 5

these processes may already be occurring. However,

"may already be occurring" - 3 - total 8

our current understanding is too limited to estimate
how much faster sea level could rise."

Cool. An admission if complete ignorance.


-----

RealClimatehttp://www.realclimate.org/?comments_popup=503

Extract -
I just read Hansen et al. article published in 1981 in
Science (for other reasons that the present discussion).
It predicts a 2.5-4.5 °C warming for 21st century according

"predicts" - 1 - total 9

to fossil fuel proportion in energy use. It says precisely that
a 2°C global warming would be enough for a 5°C warming

"would be" = 2, total 11

of the West Antarctica Ice Sheet, whose melting could be
rapid ("requiring a century or less and causing a sea level

"could be rapid" = 3, total 14

rise of 5 to 6m" that "would flood 25% of Louisiana and
Florida").

David Christainsen - Meteorologist


"would flood" = 2, total 16

Neat stuff.

"Antarctica Glacier Melting faster than usual defying models.
Now predictions show Antarctica will be ice free in summers
by 2012. "
http://www.youtube.com/watch?v=2RKHPTrkHpY

Greenland is melting far quicker than 20 years ago...
http://www.youtube.com/watch?v=9bVsuHHZbGg

"from the today show, melting glaciers in Greenland"
http://www.youtube.com/watch?v=QQwjoFKHj8Y

"The UN Environment programme warns the world's glaciers
are melting at the fastest rate on record."
http://www.youtube.com/watch?v=qqcikucun4U

"The size of the ice is the size of a small country,
and if too much of it breaks away, glaciers behind
it might start to fall into the sea, increasing sea levels. "
http://www.youtube.com/watch?v=0mM4dq3BVVU

"Global warming could do more than just melt polar ice.
It could change our maps, and displace people from cities
and tropical islands. See all National Geographic
videos: http://video.nationalgeo..."
http://www.youtube.com/watch?v=oJAbATJCugs

"Earth is heating up lately, but so are Mars, Pluto and other
worlds in our solar system, leading some scientists to speculate
that a change in the sun's activity is the common thread linking
all these baking events."
http://www.livescience.com/environme...s_warming.html

"Glaciers high in the Himalayas are dwindling faster than anyone thought,
putting nearly a billion people living in South Asia in peril of losing
their
water supply."
http://www.abc.net.au/science/articl...e&topic=latest

"Two studies by the Swiss Federal Institute of Technology looked
at 30 glaciers in the country and concluded that they are losing
about a metre of thickness of every year."
http://www.abc.net.au/news/stories/2...?section=world

Neat stuff !

Obama Speaks ; DOW Tanks wrote:

"David" wrote in message
...
Accuweather
http://global-warming.accuweather.co..._would_sh.html


David Christainsen - Meteorologist

We laready have that , it's called precession of the earth axis.
I think they're talking a timescale of years, not millenia.

Here's the abstract:
http://www.sciencemag.org/cgi/conten...t/323/5915/753

More details: http://www.sciencedaily.com/releases...0205142132.htm

T.