looking at it through a screen made with sand, surrounded by buildings made with concrete. I could let you guess what's in concrete, but I suspect you're already catching onto a theme here.

A team led by Saudi Arabian developer Neom has announced plans to research new forms of concrete, including ones that ...

With sand mining rates exceeding natural replenishment, the world’s reliance on concrete, the second most consumed material after water, is causing an environmental and resource crisis.