On Dec 9, 11:05*pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo

Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide* kill
people?

Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide* kill
people?


Asphyxiation. That, or having a big tank of it fall on you.

Tim_Miller wrote:
Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide* kill
people?


Asphyxiation. That, or having a big tank of it fall on you.
Sure! Right!

Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide* kill
people?


Asphyxiation. That, or having a big tank of it fall on you.
Sure! Right!


Actually, the lethal concentration of CO2 is only about 15%

http://www.dur.ac.uk/claire.horwell/...sure%20Effects

Tim_Miller wrote:
Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of
it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide*
kill people?


Asphyxiation. That, or having a big tank of it fall on you.
Sure! Right!


Actually, the lethal concentration of CO2 is only about 15%

http://www.dur.ac.uk/claire.horwell/...sure%20Effects


And atmospheric concentration of CO2 is about 380 PPM. One can die of
lots of things if they get an inordinate amount of it. Arsenic is
poison in too large an amount but is absolutely necessary for life.

Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too low.

But it doesn't follow that we need indefinitely large amounts of
it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide*
kill people?


Asphyxiation. That, or having a big tank of it fall on you.
Sure! Right!


Actually, the lethal concentration of CO2 is only about 15%

http://www.dur.ac.uk/claire.horwell/...sure%20Effects


And atmospheric concentration of CO2 is about 380 PPM. One can die of
lots of things if they get an inordinate amount of it.

Which appears to be what both I and the original poster(?) were
saying. I merely addressed the question "how does carbon dioxide
kill people".

Arsenic is
poison in too large an amount but is absolutely necessary for life.

I don't recall any Minimum Daily Requirement for arsenic.

I don't suppose you can provide a link in support of that assertion?

In article ,
Methuselah wrote:

john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:



"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide* kill
people?

The same way Freon Kills people in Freon Flooded Fire Suppression
Systems, by displacing the Oxygen ...... Duh.....

Tim_Miller wrote:
Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
Tim_Miller wrote:
Methuselah wrote:
john fernbach wrote:
On Dec 9, 11:05 pm, "nozob" wrote:


CO2 is a clear odourless trace gas and is not pollution!
Our atmosphere needs more of it to invigorate plant growth.

Warmest Regards

Bonzo


Our atmosphere "needs" some of it for its greenhouse gas properties,
too, to prevent the Earth's average temperature from falling too
low.

But it doesn't follow that we need indefinitely large amounts of
it in
the air for the plants, or for regulating the climate.
Too much CO2 in the air can literally be fatal to human beings; too
much isn't that good for plants, either.

"The dose is the poison." As almost every adult knows.

Certainly *carbon monoxide* is fatal. How does *carbon dioxide*
kill people?


Asphyxiation. That, or having a big tank of it fall on you.
Sure! Right!


Actually, the lethal concentration of CO2 is only about 15%

http://www.dur.ac.uk/claire.horwell/...sure%20Effects


And atmospheric concentration of CO2 is about 380 PPM. One can die of
lots of things if they get an inordinate amount of it.

Which appears to be what both I and the original poster(?) were
saying. I merely addressed the question "how does carbon dioxide
kill people".

Arsenic is poison in too large an amount but is absolutely necessary
for life.

I don't recall any Minimum Daily Requirement for arsenic.

I don't suppose you can provide a link in support of that assertion?

I didn't think so...