Why Sustained is focusing on food production

We are often told that we need to live more sustainably. But what exactly does it mean? The enormity of this concept used to paralyse rather than motivate me. Should I recycle more? Stop buying new clothes and re-tailor the old ones instead? Protest against fossil fuels in front of the Parliament? Escape civilisation altogether, grow vegetables and live off my own allotment? More often than not,...