[Newsbot]

Title: Study: Lots Of CO2 Is Literally Making The Earth Greener
Category: Environmental
Posted By: N_Fiddledog
Date: 2016-04-25 13:44:38

[uwish]

what? it isn't POISON? I never was and never will be.

[DrCaleb]

uwish uwish:

what? it isn't POISON? I never was and never will be.

At high concentrations, it is. Check WHMIS data.

And what all the articles recently about this study neglect, is another experiment that showed in the short term plants will grow faster; but they use up soil nutrients rapidly and die sooner.

https://news.stanford.edu/pr/02/jasperplots124.html

[uwish]

CO2 is a trace gas in the atmosphere, so unless it's H2S, it isn't going to do anything but green the planet.

[DrCaleb]

uwish uwish:

CO2 is a trace gas in the atmosphere, so unless it's H2S, it isn't going to do anything but green the planet.

$1:

Inhalation: Low concentrations are not harmful. Higher concentrations can affect respiratory function and cause excitation followed by depression of the central nervous system. A high concentration can displace oxygen in the air. If less oxygen is available to breathe, symptoms such as rapid breathing, rapid heart rate, clumsiness, emotional upsets and fatigue can result. As less oxygen becomes available, nausea and vomiting, collapse, convulsions, coma and death can occur. Symptoms occur more quickly with physical effort. Lack of oxygen can cause permanent damage to organs including the brain and heart.

https://www.ccohs.ca/oshanswers/chemica ... oxide.html

[N_Fiddledog]

One more time then...

CO2 is not toxic at any levels man is capable of adding to the global atmosphere.

[DrCaleb]

N_Fiddledog N_Fiddledog:

One more time then...

CO2 is not toxic at any levels man is capable of adding to the global atmosphere.

No one claimed that. uwish claimed it wasn't a poison. With no caveats. Since CO2 replaces oxygen in the blood, it can cause poor decision making at low concentrations, and asphyxiation at high concentrations. Therefore, it is a poison.

[N_Fiddledog]

DrCaleb DrCaleb:

uwish uwish:

what? it isn't POISON? I never was and never will be.

At high concentrations, it is. Check WHMIS data.

And what all the articles recently about this study neglect, is another experiment that showed in the short term plants will grow faster; but they use up soil nutrients rapidly and die sooner.

https://news.stanford.edu/pr/02/jasperplots124.html

I see so it's kind of like peak oil then, is it?

Question though: What happened during all the geologic periods in the past when temperatures, and CO2 leverls were much higher than they are today? I'm guessing it took a little greenery to feed a dinosaur. So why didn't the great deserts of destruction happen back then from soil nutrition leeching by CO2?

Also I notice in that press release he's fond of words like "perhaps" or "may be."

[DrCaleb]

Let me think, what effect did higher Co2 concentrations have on us before we evolved . . .hmmmmm. . . .

[DrCaleb]

I wonder, what effect high Co2 levels had on plants before they evolved to use lower concentrations . . . .hmmmm. . . .

[DrCaleb]

I wonder what happened to all those extinct plant species that used higher concentrations of Co2, when the Co2 levels fell to modern levels . . .hmmmm. . .

[uwish]

N_Fiddledog N_Fiddledog:

One more time then...

CO2 is not toxic at any levels man is capable of adding to the global atmosphere.

thank you, next time I will add the caveat.

[N_Fiddledog]

DrCaleb DrCaleb:

I wonder, what effect high Co2 levels had on plants before they evolved to use lower concentrations . . . .hmmmm. . . .

If you prefer. For example what happened during the Holocene warm period. I heard we did pretty well as a species during the Roman and Medieval warm periods. Apparently plants survived. When exactly are you hypothesizing that this evolution of plants to use lower concentration of CO2 took place?

As to previous extinction periods of millions of years ago, nobody knows what caused them. Stop pretending you do.

We do know there have been higher levels of CO2 with higher temps existing for hundreds of thousands of years.

[DrCaleb]

N_Fiddledog N_Fiddledog:

When exactly are you hypothesizing that this evolution of plants to use lower concentration of CO2 took place?

It was your hypothesis, not mine.

"I'm guessing it took a little greenery to feed a dinosaur."

N_Fiddledog N_Fiddledog:

As to previous extinction periods of millions of years ago, nobody knows what caused them. Stop pretending you do.

Stop attributing to me things I have not said.

N_Fiddledog N_Fiddledog:

We do know there have been higher levels of CO2 with higher temps existing for hundreds of thousands of years.

Not according to that graph. It's scaled in the hundreds of millions. The part we occupy would be the tiniest sliver on the lower right. When Co2 is the lowest.

[DrCaleb]

uwish uwish:

N_Fiddledog N_Fiddledog:

One more time then...

CO2 is not toxic at any levels man is capable of adding to the global atmosphere.

thank you, next time I will add the caveat.

If you don't say what you mean, you can't mean what you say.