Architect Diébédo Francis Kéré has designed a sustainable primary school in Gando, Burkina Faso, using mud bricks and corrugated iron.

Most of the rural Bangladeshi population lives in corrugated tin huts that can get dangerously hot under the scorching sunlight.

The district is poor by any reckoning, with 100,000 people crammed into shabby corrugated iron and tarpaulin covered huts along miles of dirt pathways and hillsides.

Located just a couple of miles from downtown Nairobi, Kibera is a heavily polluted, densely populated settlement composed of informal roads and shacks with corrugated tin roofs.

And I realized when I'd come into the meetings with these corrugated metal and chain link stuff, and people would just look at me like I'd just landed from Mars.

The ACINOX Iron and Steel Industrial Group, which imports and exports products relating to the iron and steel industry and electric conductors, loses some 12 million a year as a result of the embargo, a sum which could be used to produce more than 45,000 tonnes of corrugated bars.

This could be used to build 180,000 rural dwellings a year or more than 30,000 prefabricated dwellings, benefiting 120,000 people. Likewise, with the aforementioned quantity of corrugated bars, in 10 years the country could completely repair the 200,000 dwellings currently in need of repair throughout Havana, benefiting 180,000 people.