Big boost
Inventor Malcolm Parrish, who develops new materials for making houses, has a novel approach to the problem.
'Demands are increasing like never before. If you are going to make housing you don't want a problem with the availability of raw material. If you can recycle waste to produce low-cost, high-quality housing it's a big boost.'
He uses old glass bottles, bricks, tiles, soil, or clay - all these materials contain silica and can be found in most places in the world.
| 
Is this the answer to the housing problem? Ambiente |
|