| superchunk said: Tried that and it failed. See Biosphere 2. |
Biosphere 2 tried to remake Earth in a closed environment. If we cant recreate Earth's ecosystem in such a small space what makes you think it'll be even easier to do so for an entire planet. Thats not to mention that in order to terraform Mars we would have to relocate massive amounts of carbon dioxide or other greenhouse gases to Mars from some other source (Venus? Jupiter?) which is very impractical. I cant imagine how much energy and resources would have to be put into making Mar's atmosphere habitable, let alone upkeeping it over time because Mar's low gravity causes it to continually lose large amounts of its atmosphere.
What I am talking about is greenhouse whose sole purpose is food production, which is pretty much the same thing as greenhouses on Earth that grow food. This is actually a very easy endevour.
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