Time in nature is not leisure time; it's an essential investment in our chidlren's health (and also, by the way, in our own).

These days, unplugged places are getting hard to find.

Quite simply, when we deny our children nature, we deny them beauty.

Nature-deficit disorder describes the human costs of alienation from nature, among them: diminished use of the senses, attention difficulties, and higher rates of physical and emotional illnesses. The disorder can be detected in individuals, families, and communities.

Green exercise improves psychological health.

Mothers tend to be more direct. Fathers talk to other fathers about their kids more metaphorically. It's a different way of communication.

As the nature deficit grows, another emerging body of scientific evidence indicates that direct exposure to nature is essential for physical and emotional health. For example, new studies suggest that exposure to nature may reduce the symptoms of Attention Deficit Hyperactivity Disorder (ADHD), and that it can improve all children's cognitive abilities and resistance to negative stresses and depression.