In the late 1960s, there were alarming predictions that worldwide famine was around the corner. I wondered if humans had already lost the race, overrun the Earth's capacity. I let one question lead to the next, and unearthed information that would forever change my life: Not only is there enough food in the world to feed every man, woman, and child on Earth, there is enough to make us all chubby.

much agricultural land which might be growing food is being used instead to 'grow' money (in the form of coffee, tea, etc.).

After the journey around the world, writing Hope's Edge, I began to see that it is not possible to know what's possible - and therein lies our freedom.

The good life for me always meant connecting with those big, important issues that grown-ups get so excited about.

Little wonder that it can seem unthinkable to say "no, thanks" to the modern-day equivalent of our tribe - our fear-driven culture.

Fear doesn't have to stop us.

The problem is that our whole tribe - if you will, the larger community of humanity itself - is on a death march ecologically and in terms of the intensification of violence and conflict.