Food is a unifying cultural force, but food security (feeding the world) is one of the greatest challenges we now face. By 2050, with 2 billion more people on the planet, we'll need to find ways to feed everyone sustainably. There are 50,000 different plant species that are edible but 90% of our food energy intake currently comes from just 15 crop plants. Organised in six sections, covering leaves, roots and squashes, grains and pulses, fungi, herbs and spices, and fruit and nuts. The book features over 60 delicious and unusual vegetarian recipes from celebrity contributors .