In previous postings on this blog site I have described the changing face of our world cities both in the Developed and Developing World. Much of human population growth is in urban centres. In the Developing World, A mass migration from rural to urban settings is creating a housing a

In our last blog we described how used plastic bottles get recycled as building material in new housing projects in Sub-Saharan Africa and Central and South America. Using products we normally would throw away is one way of dealing with waste and garbage, one of our biggest challenges