Menu
News
All News
Dungeons & Dragons
Level Up: Advanced 5th Edition
Pathfinder
Starfinder
Warhammer
2d20 System
Year Zero Engine
Industry News
Reviews
Dragon Reflections
Columns
Weekly Digests
Weekly News Digest
Freebies, Sales & Bundles
RPG Print News
RPG Crowdfunding News
Game Content
ENterplanetary DimENsions
Mythological Figures
Opinion
Worlds of Design
Peregrine's Next
RPG Evolution
Other Columns
From the Freelancing Frontline
Monster ENcyclopedia
WotC/TSR Alumni Look Back
4 Hours w/RSD (Ryan Dancey)
The Road to 3E (Jonathan Tweet)
Greenwood's Realms (Ed Greenwood)
Drawmij's TSR (Jim Ward)
Community
Forums & Topics
Forum List
Latest Posts
Forum list
*Dungeons & Dragons
Level Up: Advanced 5th Edition
D&D Older Editions
*TTRPGs General
*Pathfinder & Starfinder
EN Publishing
*Geek Talk & Media
Search forums
Chat/Discord
Resources
Wiki
Pages
Latest activity
Media
New media
New comments
Search media
Downloads
Latest reviews
Search resources
EN Publishing
Store
EN5ider
Adventures in ZEITGEIST
Awfully Cheerful Engine
What's OLD is NEW
Judge Dredd & The Worlds Of 2000AD
War of the Burning Sky
Level Up: Advanced 5E
Events & Releases
Upcoming Events
Private Events
Featured Events
Socials!
Twitch
YouTube
Facebook (EN Publishing)
Facebook (EN World)
Twitter
Instagram
TikTok
Podcast
Features
Top 5 RPGs Compiled Charts 2004-Present
Adventure Game Industry Market Research Summary (RPGs) V1.0
Ryan Dancey: Acquiring TSR
Q&A With Gary Gygax
D&D Rules FAQs
TSR, WotC, & Paizo: A Comparative History
D&D Pronunciation Guide
Million Dollar TTRPG Kickstarters
Tabletop RPG Podcast Hall of Fame
Eric Noah's Unofficial D&D 3rd Edition News
D&D in the Mainstream
D&D & RPG History
About Morrus
Log in
Register
What's new
Search
Search
Search titles only
By:
Forums & Topics
Forum List
Latest Posts
Forum list
*Dungeons & Dragons
Level Up: Advanced 5th Edition
D&D Older Editions
*TTRPGs General
*Pathfinder & Starfinder
EN Publishing
*Geek Talk & Media
Search forums
Chat/Discord
Menu
Log in
Register
Install the app
Install
The
VOIDRUNNER'S CODEX
is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
Community
General Tabletop Discussion
*Geek Talk & Media
Help from knowledgeable ENworlders about biology/chemistry/astronomy
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Fenris" data-source="post: 2959171" data-attributes="member: 2820"><p>The problem with that though is that you lose the hydrogen. Once the oxgen is in the atmosphere there is no way to get it back down to become water again. It's a one way equation that results in the depletion of water from the planet's surface. Now if you had enough ice buried under a cold planet or at the poles it may work.</p><p></p><p>BUT once you add humans on the surface and they start consuming the scant oxygen supplies, just from breathing not to mention the consumption of oxygen for their machinery, you will quickly deplete the atmosphere of oxygen and abiotic production will not be able to keep up.</p><p></p><p>Now if you use abiotic to justify why oxygen is present to begin with, and then introduce terran plants afterwards, you can set up a sustainable system, if enough plants are present.</p><p></p><p>My concern with photodissociation however is that the energy required to cuse a sufficent build up of oxygen would still be too much for plants and especially for people. If you have to bombard the planet with 400 times the solar energy of earth to generate enough oxygen, nothing Terrestrial will survive on that thing.</p></blockquote><p></p>
[QUOTE="Fenris, post: 2959171, member: 2820"] The problem with that though is that you lose the hydrogen. Once the oxgen is in the atmosphere there is no way to get it back down to become water again. It's a one way equation that results in the depletion of water from the planet's surface. Now if you had enough ice buried under a cold planet or at the poles it may work. BUT once you add humans on the surface and they start consuming the scant oxygen supplies, just from breathing not to mention the consumption of oxygen for their machinery, you will quickly deplete the atmosphere of oxygen and abiotic production will not be able to keep up. Now if you use abiotic to justify why oxygen is present to begin with, and then introduce terran plants afterwards, you can set up a sustainable system, if enough plants are present. My concern with photodissociation however is that the energy required to cuse a sufficent build up of oxygen would still be too much for plants and especially for people. If you have to bombard the planet with 400 times the solar energy of earth to generate enough oxygen, nothing Terrestrial will survive on that thing. [/QUOTE]
Insert quotes…
Verification
Post reply
Community
General Tabletop Discussion
*Geek Talk & Media
Help from knowledgeable ENworlders about biology/chemistry/astronomy
Top