Fungi: mycelia, mushrooms & more

Mycelium, the root-like part of a fungus, can be grown in combination with organic matter to fit different-shaped moulds, producing a strong building material that can be cultivated anywhere.

It's "a healthy material because it's fully natural", urban planning expert Srouri, who is Palestinian, said next to a prototype shelter -- a roomy, enclosed structure with windows and a sloping roof.

"It's something that can provide the solution to extreme weather conditions to protect them from the extreme cold."