In the back streets of Kenya’s capital, Nairobi, where children play football on vacant dirt blocks beside apartment blocks, a concrete building stands behind a wobbly corrugated iron fence. It seems an unlikely place for an agricultural revolution.
The half-built building is flanked by a 10m-long greenhouse and from it emerges Winnie Wambui. The 24-year-old is an engineering student, business owner and entrepreneur – and her crop is black soldier flies.
