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Vertical farming: Difference between revisions
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[[File:vertical-farm-1.jpg|thumb]] | [[File:vertical-farm-1.jpg|thumb|Inside a vertical farm]] | ||
Vertical farming is the idea that [[food]] could be grown in | Vertical farming is the idea that [[food]] could be grown in buildings with multiple floors/levels. This is supposed to save space and use less [[land]] (thus saving more of the environment) but on close examination we see that it doesn't. | ||
==Not a solution to feed the world== | ==Not a solution to feed the world== | ||
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<small> | <small> | ||
To convert... | To convert...<br /> | ||
 sunlight → electricity → back to light again<br /> | |||
can never be as efficient as... | can never be as efficient as...<br /> | ||
 just using the sunlight directly. | |||
</small> | </small> | ||
The land requirements for [[wind]] power would be even higher. Keep in mind that wind power is still indirectly a kind of solar power: winds are caused by the sun heating the air. | The land requirements for [[wind]] power would be even higher. Keep in mind that wind power is still indirectly a kind of solar power: winds are caused by the sun heating the air. | ||
Uranium is far too scarce to power the grow lights with [[nuclear]] | Uranium is far too scarce to power the grow lights with [[nuclear|nuclear fission]]. Maybe [[fusion]] power could do it someday. Until then, vertical farming is just a bad idea. | ||
=====But doesn't it take energy to ship food from farm to city?===== | =====But doesn't it take energy to ship food from farm to city?===== | ||