Most of us spend our lives seeking the natural world. We go fishing, sit in the garden, have a picnic, live in the suburbs or go to the seaside. The most popular leisure activity in Britain is going for a walk. When joggers jog, they don’t run on the streets. They tend to go to the park or the river. But despite this, our children are growing up nature deprived(剥夺). I spent my boyhood climbing trees. These days, children are robbed of these ancient freedom, due to problems like crime, traffic, the loss of the open spaces and strange new ideas about what is best for children, that