Algerians Mould Bricks from Sahara Sand DunesGreen Prophet
Apr 11 2013 · Although the Sahara desert used to be a green retreat for giraffes and hippos 5 000 years ago it is now a giant sometimes rolling landscape of sand. A lot of sand fact roughly two thirds of Algeria is made up of sand according to the authors of a study published in the Arabian Journal for Science and Engineering.. And they believe it can be used to produce a sustainable building