African warmth in your home

The Russians have resumed supplying gas to Ukraine. It will take a surprising 36 hours for it to reach some customers, which shows how long the pipeline is.

So, how feasible would it be to run a closed pipeline loop from the Sahara desert to Europe and back? Filled not with gas, but water. Imagine hundreds of kilometres of pipe laid out in the baking desert sun. Circulated water could take the heat collected there and deliver it to colder northern countries.

It would be a simple system with low maintenance costs and zero emissions, offering a perpetual revenue stream for African countries.

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