"There would be no call for ecological campaigning had nature not been exploited and abused. We experience the ground now bringing forth thistles as soil erosion devastates formerly arable land and deserts overtake fertile farms. Rivers and the atmosphere are polluted thoughtlessly and we are fearful of the consequences of a depleted ozone layer and the devastation of the greenhouse effect. We are not quite at home in our world, and somewhere in each of us there is a nostalgia for a paradise that has been lost."