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<blockquote data-quote="lgburton" data-source="post: 2335185" data-attributes="member: 30653">well, no you diddn't, but it wouldn't have as signifigant an impact as has been implied earlier in this thread. having checked up on it, the science that the tv shows were using is relativly new and unproven. the real fact is that we don't know what impact a large moon has, aside from tides, on a planet.&nbsp;anyhow:i'd say that you do need oceanic depths to produce the heat-sink effect that our oceans do on earth, helping make a viable hydrosphere. if you are going to go with the swamp/deep canyon route, i'd suggest making them equatorial, so that they can still function as heat-sinks.&nbsp;&nbsp;well.... the ammout of water that a guyser field, no matter how large, would put out wouldn't be that signifigant in terms of cloud formation / greenhouse effect, when compared with oceanic evaporation. i could be wrong on this point, but...&nbsp;just my 2cp on the world building:well, with what you've got so far, i'd arrange the geography so that the equator was mostly swampy on the outskirts, with a narrow but world-spanning sea covering most of the tropics. if this area were the primary volcanic area, you could have it so densly filled with islands that it wouldn't be too much like an ocean... it could make some interesting societal myths/legends, would give you the required water area to produce an active and (most likely) life-producing hydrosphere. &nbsp;&nbsp;&nbsp;&nbsp;and, just in case anyone wanted scientific backup of the snowball effect i was talking about earlier...<a href="http://www-eps.harvard.edu/people/faculty/hoffman/snowball_paper.html" target="_blank">http://www-eps.harvard.edu/people/faculty/hoffman/snowball_paper.html</a></blockquote>

[QUOTE="lgburton, post: 2335185, member: 30653"] well, no you diddn't, but it wouldn't have as signifigant an impact as has been implied earlier in this thread. having checked up on it, the science that the tv shows were using is relativly new and unproven. the real fact is that we don't know what impact a large moon has, aside from tides, on a planet. anyhow: i'd say that you do need oceanic depths to produce the heat-sink effect that our oceans do on earth, helping make a viable hydrosphere. if you are going to go with the swamp/deep canyon route, i'd suggest making them equatorial, so that they can still function as heat-sinks. well.... the ammout of water that a guyser field, no matter how large, would put out wouldn't be that signifigant in terms of cloud formation / greenhouse effect, when compared with oceanic evaporation. i could be wrong on this point, but... just my 2cp on the world building: well, with what you've got so far, i'd arrange the geography so that the equator was mostly swampy on the outskirts, with a narrow but world-spanning sea covering most of the tropics. if this area were the primary volcanic area, you could have it so densly filled with islands that it wouldn't be too much like an ocean... it could make some interesting societal myths/legends, would give you the required water area to produce an active and (most likely) life-producing hydrosphere. and, just in case anyone wanted scientific backup of the snowball effect i was talking about earlier... [url="http://www-eps.harvard.edu/people/faculty/hoffman/snowball_paper.html"]http://www-eps.harvard.edu/people/faculty/hoffman/snowball_paper.html[/url] [/QUOTE]

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