Re: [Phys-l] [tap-l] Fwd: [PHYSHARE] Can't win for losing - NF3

[Michael Porter <listmoe@gmail.com>]

On Jul 3, 2008, at 5:00 PM, John Hubisz wrote:
> Here, as the concentration of CO2 increases, each further increase
> in concentration produces less of a greenhouse effect than the  
> previous
> because when radiation has been absorbed, it is not available to be
> absorbed further.


Hunh? Greenhouse gas molecules are *not* sponges, they absorb and _re- 
radiate_ the IR. The higher the concentration of any greenhouse gas,  
the longer it takes for the radiation to escape the atmosphere.

---
Michael Porter
Colonel By Secondary School
Ottawa, Ontario, Canada