2,956
edits
Vertical farming: Difference between revisions
no edit summary
No edit summary |
|||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
[[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== | ||
| Line 93: | Line 93: | ||
<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 solar panels could be on non-arable land?==== | |||
So could [[greenhouses]] (which would use the non-arable land more efficiently compared to laying down solar panels to power vertical farms). {{x|In the case of desert, maybe it's too hot for greenhouses, but it's also too hot for vertical farms (and too far away for power lines to reach, if the vertical farms are in non-desert areas).}} | |||
=====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?===== | ||
| Line 119: | Line 122: | ||
==See also== | ==See also== | ||
* [[Food]] - a general overview, including better solutions for feeding the world. | * [[Food]] - a general overview, including better solutions for feeding the world. | ||
==External links== | |||
[https://solar.lowtechmagazine.com/2021/02/vertical-farming-does-not-save-space/ Vertical Farming Does not Save Space] | |||