Re: Arcology, anyone?
Posted: Tue 21 Feb 2023, 23:14:01
theluckycountry wrote:Like a big Mecca. Well I hope they have more luck that Dubai did with it's "World" islands mega project.
Sand: Around 50 billion tons of it – enough to build a wall 27 metres deep and 27 metres high around planet Earth – is used every year, in everything from the production of glass to concrete blocks.
This volume makes sand the second most used resource worldwide after water.
https://www.agbi.com/analysis/gulf-cons ... -shortage/
Sort of, but unlike water Sand comes in many types and grades like Petroleum. Some types are perfect for making concrete while other grades are useless for concrete but still ideally useful for making glass.