Thread: Early farmers warmed Earth's climate
View Single Post
  #13   Report Post  
Old December 17th 03, 03:07 PM posted to uk.sci.weather
Keith Dancey Keith Dancey is offline
external usenet poster
  
First recorded activity by Weather-Banter: Jul 2003
Posts: 318
Default Early farmers warmed Earth's climate
In article , Paul Hyett writes:
In uk.sci.weather on Tue, 16 Dec 2003 at 16:05:23, Keith Dancey wrote :
In article , "Shaun Pudwell"
writes:

The problem I have is this: If CO2 is such a powerful greenhouse gas
Methane and Water Vapour are much worse ) , then why is Mars so cold?

Average atmospheric pressure on Mars is 6 millibars.

Enough to generate big dust storms though!

Indeed. Beagle 2 is due to land in Isidis Planitia - a low lying basin - just
at the end of the dust storm season. One unseasonal dust storm and... no
power.


BTW, I've always wondered what the surface temperature of Venus would be
if its atmosphere was the same composition as Earth's.

Estimated average surface temperature - 460 - 490C
Estimated greenhouse effect - 450 - 500K


Average Earth surface temperature ~ 15C
Estimated Earth greenhouse effect - 33K



Cheers,

keith


MARS EXPRESS


---
Iraq: 5 thousand million pounds, 50 lives, and counting...


Reply With QuoteReply With Quote