[ExI] Diminishing influence of increasing carbon dioxide on temperature

BillK pharos at gmail.com
Fri Aug 15 12:54:56 UTC 2014

On Fri, Aug 15, 2014 at 10:34 AM, Anders Sandberg wrote:
<snip calculations>
> So I would be surprised if geothermal had a huge influence on Venusian
> surface temperatures. The solar input is on the order of 2613 W/m^2: to
> measure up you need a geothermal flow higher than Io's 2 W/m^2 - by a factor
> of a thousand! I think we would notice those eruptions. Also, that would
> assume an optically thin atmosphere, which we know is not true given
> observations. One can of course tone down the geothermal and make the
> atmosphere more opaque, but it seems that when we start to reach scenarios
> compatible with a solid surface we will already have added enough greenhouse
> to make geothermal rather moot.

I found some more articles agreeing with you and with even more juicy
equations for your delectation.



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