If you have to wear an oxygen mask at high altitudes because oxygen
(32) is heavier than other gases that make up our air (28), then how
does co2 get into the stratosphere and cause a warming blanket when co2
(44) is much heavier than oxygen?
Gordon

On Thu, 21 Jun 2007 15:48:12 -0700, Gordon wrote:

If you have to wear an oxygen mask at high altitudes because oxygen
(32) is heavier than other gases that make up our air (28), then how
does co2 get into the stratosphere and cause a warming blanket when co2
(44) is much heavier than oxygen?
Gordon

You're kidding, right?

* Gordon wrote, On 6/21/2007 6:48 PM:
If you have to wear an oxygen mask at high altitudes because oxygen
(32) is heavier than other gases that make up our air (28),

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

then how
does co2 get into the stratosphere and cause a warming blanket when co2
(44) is much heavier than oxygen?
Gordon

"Jeff" wrote in message
...
* Gordon wrote, On 6/21/2007 6:48 PM:
If you have to wear an oxygen mask at high altitudes because oxygen
(32) is heavier than other gases that make up our air (28),

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

Tell that to a Mt. Everest summiteer who'd pass out without his bottled
O2..

Wilbur Hubbard

On Thu, 21 Jun 2007 23:52:04 +0100, Goofball_star_dot_etal
wrote:

On Thu, 21 Jun 2007 15:48:12 -0700, Gordon wrote:

If you have to wear an oxygen mask at high altitudes because oxygen
(32) is heavier than other gases that make up our air (28), then how
does co2 get into the stratosphere and cause a warming blanket when co2
(44) is much heavier than oxygen?
Gordon

You're kidding, right?

Sorry..
For gasses that have no significant sources or sinks in the
atmosphere, they are completely mixed and in fixed proportions in the
atmosphere. Water vapour though has considerable structure, since the
maximum mixing ratio is controlled by temperature. In the tropics and
at the surface the temperatures are higher than at the poles and
tropopause.

The reduction of oxygen with height is due to the reduction in air
pressure with height.

The CO2 greenhouse effect is less in the stratosphere than in the
troposphere where there is more air.

The stratopause maximum temperature around 50km is due to ozone
absoption of sunlight at short wavelengths 300nm.

"Dave" wrote in message
...
On Thu, 21 Jun 2007 19:09:54 -0400, "Wilbur Hubbard"
said:

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

Tell that to a Mt. Everest summiteer who'd pass out without his
bottled
O2..

Ah, another candidate to sit in the corner with the pointed hat on his
head.

Now, get out your science book and look up "partial pressure."

OK, OK. You're right for once. I looked it up and the relative
percentages of the atmospheric gasses remain the same with altitude
until you get very very high up like in the ionosphere.

But, for example, the atmosphere atop Mt. Everest is about 1/3 the
pressure as at sea level. And, even though the oxygen content remains
about 23%, the available oxygen molecules to breathe are only about
1/3rd as many. So, my Mt. Everest example still holds true because 1/3rd
of 23% of oxygen (the standard amount at sea level) is still only 1/3rd
enough.

http://www.adlers.com.au/oxygen.php

Wilbur Hubbard

* Wilbur Hubbard wrote, On 6/21/2007 8:54 PM:

"Dave" wrote in message
...
On Thu, 21 Jun 2007 19:09:54 -0400, "Wilbur Hubbard"
said:

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

Tell that to a Mt. Everest summiteer who'd pass out without his bottled
O2..

Ah, another candidate to sit in the corner with the pointed hat on his
head.

Now, get out your science book and look up "partial pressure."

OK, OK. You're right for once. I looked it up and the relative
percentages of the atmospheric gasses remain the same with altitude
until you get very very high up like in the ionosphere.

But, for example, the atmosphere atop Mt. Everest is about 1/3 the
pressure as at sea level. And, even though the oxygen content remains
about 23%, the available oxygen molecules to breathe are only about
1/3rd as many. So, my Mt. Everest example still holds true because 1/3rd
of 23% of oxygen (the standard amount at sea level) is still only 1/3rd
enough.


That's about what we'd expect from an English major.

Wilbur Hubbard wrote:

"Dave" wrote in message
...
On Thu, 21 Jun 2007 19:09:54 -0400, "Wilbur Hubbard"
said:

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

Tell that to a Mt. Everest summiteer who'd pass out without his bottled
O2..

Ah, another candidate to sit in the corner with the pointed hat on his
head.

Now, get out your science book and look up "partial pressure."

OK, OK. You're right for once. I looked it up and the relative
percentages of the atmospheric gasses remain the same with altitude
until you get very very high up like in the ionosphere.

But, for example, the atmosphere atop Mt. Everest is about 1/3 the
pressure as at sea level. And, even though the oxygen content remains
about 23%, the available oxygen molecules to breathe are only about
1/3rd as many. So, my Mt. Everest example still holds true because 1/3rd
of 23% of oxygen (the standard amount at sea level) is still only 1/3rd
enough.

http://www.adlers.com.au/oxygen.php

Wilbur Hubbard


The first teams to get to the Everest summit didn't have the benefit of
bottled Oxygen.

Goofball_star_dot_etal wrote:
snipolus maximus
You're kidding, right?
no he's not...and that's because he's as dumb as a post.
The only thing more annoying than a dumbass troll is _feeding_ a dumbass troll.

"Dave" wrote in message
...
On Thu, 21 Jun 2007 19:09:54 -0400, "Wilbur Hubbard"
said:

And what makes you think this is true? The concentration of oxygen
remain essentially unchanged with altitude, at about 21%.

Tell that to a Mt. Everest summiteer who'd pass out without his bottled
O2..

Ah, another candidate to sit in the corner with the pointed hat on his
head.

Now, get out your science book and look up "partial pressure."


Ahahahaaaa... good one Dave.

--
"j" ganz @@
www.sailnow.com