Around six billion tonnes of sand is dredged from the world's oceans every year, a new report says.

Around six billion tonnes of sand is dredged from the world’s oceans every year, a new report says.

  • Addition@sh.itjust.worksEnglish
    19·
    1 年前

    Not all sand is equal. We dredge up ocean sand because the particle shape and composition is excellent for concrete. Other sand isn’t as good.