ABSTRACT
One of the biggest problems for anyone trying to motivate people to change their
behaviour is to overcome the sense in many that the situation is hopeless. There
are a lot of reasons why people may feel hopeless about the possibility of chan-
ging the unsustainable factors affecting the world today. These include the daunt-
ing enormity of the physical challenge to reduce levels of greenhouse gases from
the atmosphere, and the aspirations of less affl uent peoples around the world to
have the same lifestyles and possessions enjoyed by richer nations.
