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"We are coming to a point in our history in which we need to start looking for more space," Han Admiraal, a civil engineer with over two decades of experience in underground space, told AFP on the sidelines of this year's World Tunnel Congress.
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"Underground spaces could easily be used for growing crops," he said, as he toured the cavernous Bourbon Tunnel, dug deep under the Italian city of Naples as a potential escape route for King Ferdinand II of Bourbon after the 1848 riots.Scientific developments in areas like aquaponics—where vegetables and fish are farmed together—could help relieve the pressure on the food supply chain, and dramatically cut transport costs if such new farms were situated under cities.
Isn't excavation expensive?
(Score: 2) by HiThere on Friday May 10 2019, @04:38AM
That's not an either/or, that's rather a both/and. The population of space habitats, whether in space on on planetary surfaces, will need to be rigidly controlled until the ecology gets the size of at least Australia, and which point the control could loosen a bit. But you don't want to consume too much oxygen, and you don't want to emit too little carbon dioxide, etc. With larger numbers you can depend more on average consumption/emission.
And Earth's resources are being overused. The population on Earth needs to decrease. Fortunately TVs, video games, social networking, etc. are already acting to decrease the population, but perhaps not quickly enough.
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.