Electronics > Power/Renewable Energy/EV's
Vertical Farming and Other High Tech Agriculture
sandalcandal:
Starting a new thread here to avoid completely derailing the last thread where conversation drifted over to land usage and farming, and to keep information more organised.
--- Quote from: Rx7man on October 29, 2020, 07:06:08 pm ---I cannot fathom how growing indoors is going to be more efficient, you need light, and where is the power for that light going to come from? Solar panels? Why not plant the crops outside and skip the losses? It might work alright for leafy greens, but there isn't a snowflakes chance in hell you'll actually feed people that way
Same argument can be used for electric flight that's powered by dirty energy sourcesd
--- End quote ---
Energy use is sure to be less efficient per kg of produce than a green house on the same plot of land but the point of vertical farming is being able to grow with much greater efficiency of other resources e.g. space, water, fertilisers, transport.
--- Quote from: Water & Development Research Group, Aalto University ---Comparing greenhouse cultivation and VF with lighting efficiency of 52% each running with coal power can be observed that VF produces 2.5 – 7 times higher GHG emissions depending on the location. When comparing the same systems running with hydropower, VF produces 15-27% of the GHG emissions produced by a greenhouse. However, if the energy source is assumed to be hydropower, for example, the GHG emissions for VFs 52 would be 15%- 30% of the GHG emissions emitted by the greenhouses depending on the location.
--- End quote ---
https://wdrg.aalto.fi/vertical-farming-the-myth-of-resource-efficiency/
tom66:
The real benefit to vertical farming is surely that we can use large areas currently allocated to crops for more useful things - such as solar panels, wind turbines, carbon-capture equipment, forests, or housing.
Of course we will need to address the meat question. I seriously hope the 'fake meat' market continues to grow as aggressively, if not more so, than it has in the last decade. I have tried a number of those products so far and generally been quite impressed. Beef is horribly inefficient as a food source, and chicken is, while a bit better than beef, not much better. With continued advances here we might find that the need for arable land to raise animals and their feed reduces considerably and we can begin to use that land for more useful or urgent things, such as stopping the planet boiling to death.
Rx7man:
--- Quote from: tom66 on October 29, 2020, 08:20:08 pm ---The real benefit to vertical farming is surely that we can use large areas currently allocated to crops for more useful things - such as solar panels, wind turbines, carbon-capture equipment, forests, or housing.
Of course we will need to address the meat question. I seriously hope the 'fake meat' market continues to grow as aggressively, if not more so, than it has in the last decade. I have tried a number of those products so far and generally been quite impressed. Beef is horribly inefficient as a food source, and chicken is, while a bit better than beef, not much better. With continued advances here we might find that the need for arable land to raise animals and their feed reduces considerably and we can begin to use that land for more useful or urgent things, such as stopping the planet boiling to death.
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Industrially farmed beef sure, but regeneratively farmed beef is a net carbon sequesterer, Grasslands are incredible carbon sinks, and benefit from grazing. Industrial farming of ANY type is environmentally horrid and monocrops deplete soil carbon
ahbushnell:
--- Quote from: Rx7man on October 29, 2020, 08:57:23 pm ---
--- Quote from: tom66 on October 29, 2020, 08:20:08 pm ---The real benefit to vertical farming is surely that we can use large areas currently allocated to crops for more useful things - such as solar panels, wind turbines, carbon-capture equipment, forests, or housing.
Of course we will need to address the meat question. I seriously hope the 'fake meat' market continues to grow as aggressively, if not more so, than it has in the last decade. I have tried a number of those products so far and generally been quite impressed. Beef is horribly inefficient as a food source, and chicken is, while a bit better than beef, not much better. With continued advances here we might find that the need for arable land to raise animals and their feed reduces considerably and we can begin to use that land for more useful or urgent things, such as stopping the planet boiling to death.
--- End quote ---
Industrially farmed beef sure, but regeneratively farmed beef is a net carbon sequesterer, Grasslands are incredible carbon sinks, and benefit from grazing. Industrial farming of ANY type is environmentally horrid and monocrops deplete soil carbon
(Attachment Link)
(Attachment Link)
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I think the problem with cows is methane which is worse then CO2.
Rx7man:
--- Quote from: ahbushnell on October 29, 2020, 10:48:44 pm ---
--- Quote from: Rx7man on October 29, 2020, 08:57:23 pm ---
--- Quote from: tom66 on October 29, 2020, 08:20:08 pm ---The real benefit to vertical farming is surely that we can use large areas currently allocated to crops for more useful things - such as solar panels, wind turbines, carbon-capture equipment, forests, or housing.
Of course we will need to address the meat question. I seriously hope the 'fake meat' market continues to grow as aggressively, if not more so, than it has in the last decade. I have tried a number of those products so far and generally been quite impressed. Beef is horribly inefficient as a food source, and chicken is, while a bit better than beef, not much better. With continued advances here we might find that the need for arable land to raise animals and their feed reduces considerably and we can begin to use that land for more useful or urgent things, such as stopping the planet boiling to death.
--- End quote ---
Industrially farmed beef sure, but regeneratively farmed beef is a net carbon sequesterer, Grasslands are incredible carbon sinks, and benefit from grazing. Industrial farming of ANY type is environmentally horrid and monocrops deplete soil carbon
(Attachment Link)
(Attachment Link)
--- End quote ---
I think the problem with cows is methane which is worse then CO2.
--- End quote ---
Cows don't emit more methane than the grass rotting on its own would though!
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