What is different and exciting is how much we have learned. We learned we were right that we don't need the chemical model of agriculture. We know so much more about the life of soil now and we understand how plants synergistically work together with microbes and animals to create healthy conditions.

Each of us carries within us a worldview, a set of assumptions about how the world works - what some call a paradigm - that forms the very questions we allow ourselves to ask, and determines our view of future possibilities.

I was a compulsive eater in my late teens and until I wrote Diet for a Small Planet, so I know what it feels like when food becomes a threat.

Making conscious choices about what we eat, based on what the earth can sustain and what our bodies need, can help remind us that our whole society must begin to balance sustainable production with human need.

Hunger is a people-made phenomenon, so the central issue is power: the power of those who make the decisions about what is grown and who, or what, it's grown for.

Every choice we make can be a celebration of the world we want.

For me hope isn't wishful thinking or blind faith about the future. It's a stance toward life - one of curiosity and humility.