According to many authorities the impact of humanity on the earth is already overshooting the earth's capacity to supply humanity's needs. This is an unsustainable position. This book does not focus on the problem but on the solution, by showing what it is like to live within a fair earth share ecological footprint.

The authors describe numerical methods used to calculate this, concentrating on low or no cost behaviour change, rather than on potentially expensive technological innovation. They show what people need to do now in regions where their current lifestyle means they are...