Here’s something to chew on: food – what we eat and how we produce it – is responsible for one-third of our current climate crisis. It’s also the single largest killer on our planet. It’s an issue so massive, so complex, it seems insurmountable. Enter Gunhild Stordalen, Johan Rockström and Mattias Klum – the Swedish-Norwegian dream team presenting a scientifically sound way to solve the world’s biggest problem