Technofile : Paper walls

Don’t throw away those old telephone books and plastic milk cartons, build
walls with them. CSIRO, Australia’s national research centre, is backing a
project to turn these raw ingredients into flat panels and mouldings that would
normally be made of wood. CSIRO claims that the mix of paper and plastic is
twice as strong and three times as stiff as polymer boards. The material also
repels water and is free from the knots and defects that weaken wood.