<p>Carboniferous CO<sub>2</sub> levels may not have been unlike today's. Evidence for this is primarily from long term geochemical modeling work, as there are few direct proxies of sufficient age.</p>

<p>I can easily cite one source, as it's from my own paper, but please check the reference list for the other datasets. <a href="http://dx.doi.org/10.1016/j.chemgeo.2013.10.012" rel="nofollow noreferrer">http://dx.doi.org/10.1016/j.chemgeo.2013.10.012</a>
<a href="https://i.sstatic.net/iYktM.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/iYktM.jpg" alt="Phanerozoic CO2, fig. 5, p. 294"></a></p>

CC BY-SA 4.0
2018-10-11T04:22:53.773Z
2018-10-13T08:39:13.480Z
2018-10-13T08:39:13.480Z
Rolf
<p>What were CO2 levels in early and late Carboniferous, an what were mean levels? Who are the sources for these figures?</p>

CC BY-SA 4.0
2018-10-07T16:35:24.673Z
related https://earthscience.stackexchange.com/questions/10114/did-climate-cool-down-when-underground-hydrocarbons-stocks-formed
trond hansen
CC BY-SA 4.0
2018-10-12T20:09:06.393Z
What do you mean under "who are the sources"? Do you mean who are these researchers who came up with these estimates, or do you mean what is the scientific basis for these estimations?
Ale..chenski
CC BY-SA 4.0
2018-10-14T02:41:24.990Z
I have read that the Carboniferous was caused by the evolution of plant cellulose or lignin and fibres, and it took millions of years for microbes and animals and funghi to develop enzymes to dissolve it so it caused excess oxygen. Perhaps the co2 was caused by fires.
bandybabboon
<atmosphere><paleoclimatology>
What were CO2 levels in Carboniferous?
Richard Lawson
# What were CO2 levels in Carboniferous?

(Asked by: username_0 on 2018-10-07)

What were CO2 levels in early and late Carboniferous, an what were mean levels? Who are the sources for these figures?

**Tags:** atmosphere, paleoclimatology

> **Comments:**
> **username_1**: related https://earthscience.stackexchange.com/questions/10114/did-climate-cool-down-when-underground-hydrocarbons-stocks-formed  
> **username_2**: What do you mean under "who are the sources"? Do you mean who are these researchers who came up with these estimates, or do you mean what is the scientific basis for these estimations?  
> **username_3**: I have read that the Carboniferous was caused by the evolution of plant cellulose or lignin and fibres, and it took millions of years for microbes and animals and funghi to develop enzymes to dissolve it so it caused excess oxygen. Perhaps the co2 was caused by fires.  

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## 1 answers

### Answer by username_4 on 2018-10-11. Score: 1

Carboniferous CO2 levels may not have been unlike today's. Evidence for this is primarily from long term geochemical modeling work, as there are few direct proxies of sufficient age.

I can easily cite one source, as it's from my own paper, but please check the reference list for the other datasets. <http://dx.doi.org/10.1016/j.chemgeo.2013.10.012>
[![Phanerozoic CO2, fig. 5, p. 294](https://i.sstatic.net/iYktM.jpg)](https://i.sstatic.net/iYktM.jpg)


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