[extropy-chat] Re: Animals

Eugen Leitl eugen at leitl.org
Fri Feb 13 10:02:15 UTC 2004

On Fri, Feb 13, 2004 at 01:33:23AM +0000, Christian Weisgerber wrote:

> Reference?
> (I can't find anything on this.)



Mid-Life Crisis for the Earth

5.6 Gyr (1.1 Gyr from today):

    * Sun 10% brighter: ~1.1 Lsun
    * Cause a moist greenhouse effect on Earth, driving away most of the
    * water in the air. 

9 Gyr (3.5 Gyr from today):

    * Sun 40% brighter: ~1.4 Lsun
    * Oceans totally evaporate in a runaway greenhouse effect: Earth like
    * Venus today. 

I have no idea how reliable is this. Even 1% of solar constant change
typically can wreak havoc to climate, so 10% increase sounds pretty
catastrophic to me.

-- Eugen* Leitl <a href="http://leitl.org">leitl</a>
ICBM: 48.07078, 11.61144            http://www.leitl.org
8B29F6BE: 099D 78BA 2FD3 B014 B08A  7779 75B0 2443 8B29 F6BE
http://moleculardevices.org         http://nanomachines.net
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: not available
URL: <http://lists.extropy.org/pipermail/extropy-chat/attachments/20040213/59b71391/attachment.bin>

More information about the extropy-chat mailing list