COP21: How an unhealthy and greedy diet causes climate change, natural disasters and hunger

Diets are changing globally and have done so rapidly in most high-income countries, like the UK, over the past 50 years. This dietary transition is now happening in most cities of the global south, the nations of Africa, Central and Latin America and most of Asia, where people's habits are changing from a traditional plant-based diet (which is healthier and lower in greenhouse gas emissions) to a diet that is high in processed, energy dense convenience foods (rich in fat and sugar, but poor in n