In eastern Congo, hand-hewn, low-tech scooters called chukudu's are a used to carry heaps of cargo, from food to fuel to bricks, across long distances.

This Vietnamese district used old construction materials to create a structure strong enough to withstand heavy storms.

Dalhousie University student, Keilah Bias has invented a pressing machine that turns agricultural waste into briquettes for cooking in impoverished communities.