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  Container terminal, Durban (40598229624)Bob Adams from Amanzimtoti, South Africa, CC BY-SA 2.0, via Wikimedia Commons. Resized and cropped.
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  Johannesburg skyline 2017Mark Hillary, CC BY 2.0, via Wikimedia Commons. Resized and cropped.
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  SandtonGP-skylineAndres de Wet, CC BY-SA 3.0, via Wikimedia Commons. Resized and cropped.
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  Parliament building malawiTimon Zingg, CC BY-SA 3.0, via Wikimedia Commons. Resized and cropped.
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  Solar Power Plant KeetmanshoopHp.Baumeler, CC BY-SA 4.0, via Wikimedia Commons. Resized and cropped.
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  Reverse osmosis system at Bedok NEWater FactoryZ22, CC BY-SA 4.0, via Wikimedia Commons. Resized and cropped.
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  Modern John Deere Tractor IMG 0401Elcajonfarms, CC BY 3.0, via Wikimedia Commons. Resized and cropped.
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  Irkhaya Farms center-pivot irrigationAlex Sergeev (www.asergeev.com), CC BY-SA 3.0, via Wikimedia Commons. Resized and cropped.
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  Hotel room interior at hotel Radisson Blu OuluJIP, CC BY-SA 3.0, via Wikimedia Commons. Resized and cropped.
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  EthernetSwitchRaysonho @ Open Grid Scheduler / Grid Engine, Public domain (CC0), via Wikimedia Commons. Resized and cropped.
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  Shipping container stacks - Port of Rotterdam - 2014 - 4AgainErick, CC BY-SA 4.0, via Wikimedia Commons. Resized and cropped.
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  Front of server racks at NERSCDerrick Coetzee from Berkeley, CA, USA, Public domain (CC0), via Wikimedia Commons. Resized and cropped.