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Agriculture in Ocean

3/4 th of our earth is composed of Water. We are finding difficult to get the required amount of water for irrigation. It is approximated that to produce 1 Kg of Rice requires 400 - 500 litres of water is required. A floating Island powered by Green Energy like Solar, Wind Energy can be a used as a piece of Land for agriculture.

Without considering the limitations, the benefits of this type of agriculture are as below:
1. Independent of climate change.
2. No need to worry about water required for irrigation.
3. We can escape out of Natural calamities.

I request your inputs on the limitations of such a concept.

Thanks & Regards,


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  • Jul 14 2012: Hi Arun.

    I'ill play ;) I Love the idea, but i wonder if the premise is a bit skewed?

    1. It seems that we already produce 1.5 times the amount of food we need to feed everybody.
    2. You don't need 4-5000 liters pr.Kg. Systems like hydroponics and better yet aquaponics takes care of that, and makes better and more automated yield.
    3. How about transporting the food to land? At least in theory, things should be produced as locally as possible.

    Now, if you throw in a city on your island THEN we are talking uber niceness :) There are designs for such a type of city out there, but they seem to be to very high tech (visually and constructionwise) to start out with. If you design it at a level where non-specialist can build and maintain this thing, and you use cheap (not too cheap ;) materials then the niceness rises. Something in the style of 'the global village construction kit' - just for floating city's.
    You should also expect that everything should be self-sustainable.

    What are your thoughts on that?

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