Published on Monday (28 January) after extensive research by 43 scientists, the Lancet Commission’s report on obesity, under-nutrition and climate change cites these "inter-connected" issues as “three of the gravest threats to human health and survival”. The 56-page document argues that these challenges are all being driven by the so-called “Big Food” industry – the global systems in which the majority of the world’s mass-produced food is grown and manufactured – which is estimated to account for around a quarter of carbon emissions globally.