On the face of it, our diet has never felt more varied. The traditional 'Kiga' mainstay of ‘Potatoes and veg’ can feel like a distant memory. Most of us have access to more cuisines and flavours than ever before. However, despite the seemingly huge variety of ingredients now present in our supermarkets and on our plates, as a species we consume just a tiny proportion of the world’s available food. Whether we live in Kampala or on the out-skirts of the Bwindi Impenetrable Gorilla forest , the human diet is typically centered around 30 or so main crops. It is estimated that more than 50% of our food comes from just three crops: wheat, rice and maize. Being overly reliant on three crops may not sound like a big problem but with a growing global population and the increasing threat of climate change it may be riskier than you’d think. Climate change is having an enormous impact on how we grow and harvest crops. With extreme temperatures, increasing drought and elevated levels of ca...