Namibia's Ohorongo Cement plant is said to be using an innovative, eco-friendly biofuel solution to give them a competitive edge.
Blackthorn can grow to as high as seven meters and forms impenetrable thickets. It won't let any other species grow in the vicinity, with its use said to be causing much concern among local famers.
It is now harvested turning the bush into wood chips used for fuel by Ohorongo Cement, Namibia's only cement manufacturer, giving it a potential edge over some of its internation