In the Cambrian Period, the CO2 level was about twenty times what it is right now. – Off Topic – HabitableZone

Off Topic

Recent posts

Recent posts

Check out 'Orrery' link in lefthand bar Arrell October 4, 2026 2:47 pm (Space/Science)
Attention Podrock and other Geologists: A geological Earth viewer Arrell October 7, 2026 11:38 pm (Space/Science)
OpenAI releases 372 more proofs and advancements in mathematics... Arrell October 7, 2026 10:31 pm (Geek Speak)
New feature Arrell October 7, 2026 9:07 pm (Space/Science)
Podrock, Pebble Arrell October 6, 2026 8:06 pm (Space/Science)
The Orrery- Your Guide to the Universe Arrell October 6, 2026 5:37 pm (Space/Science)
2026 Nobel prize in Physics-Francis Halzen, Neutrino hunter Arrell October 6, 2026 5:33 pm (Space/Science)
Planet born around dead star Arrell October 5, 2026 5:28 pm (Space/Science)
So- another feature I could explore Arrell October 4, 2026 9:07 pm (Space/Science)
Something to keep an eye on- Plague again Arrell October 5, 2026 12:06 am (Space/Science)

Log in
Register

Off Topic » in reply to Re: Breathing Earth

In the Cambrian Period, the CO2 level was about twenty times what it is right now.

TB — 4/24/2012 6:40:59 PM (archived)

We didn't melt, and there was no "runaway."

Log in or register to post.

The whole thread (17 posts)

Breathing Earth - Vitruvius - 4/24/2012 8:43:21 AM
- Re: Breathing Earth - ER - 4/24/2012 4:54:54 PM
  - In the Cambrian Period, the CO2 level was about twenty times what it is right now. - TB - 4/24/2012 6:40:59 PM
    - No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 7:45:13 PM
      - Re: No, but corn didn't grow in Iowa, either. - TB - 4/24/2012 7:52:23 PM
        
        Re: No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 8:22:25 PM
        
        Re: No, but corn didn't grow in Iowa, either. - TB - 4/24/2012 8:43:50 PM
        
        Re: No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 8:51:23 PM
        
        Then why bring up Venus at all? - TB - 4/24/2012 9:17:46 PM
        
        We have every reason to believe it won’t be as high as Venus. - ER - 4/24/2012 9:33:04 PM
      - Re: No, but corn didn't grow in Iowa, either. - VelociraptorBlade - 4/24/2012 7:47:45 PM
        
        Re: No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 8:26:33 PM
        
        Re: No, but corn didn't grow in Iowa, either. - johannes - 4/27/2012 12:29:56 AM
        
        Re: No, but corn didn't grow in Iowa, either. - TB - 4/24/2012 8:59:14 PM
        
        Re: No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 9:16:38 PM
        
        Re: No, but corn didn't grow in Iowa, either. - TB - 4/24/2012 9:19:02 PM
        
        Re: No, but corn didn't grow in Iowa, either. - ER - 4/24/2012 9:24:11 PM

Related discussions

HabitableZone — be civil, or at least entertaining. Masthead: Earth photographed from the International Space Station (NASA); the spire in the Eagle Nebula (NASA, ESA and The Hubble Heritage Team, STScI/AURA).