My entry into the environmental arena was through the issue that so dramatically - and destructively - demonstrates the link between science and social action: nuclear weapons.

Nothing ever dies, nothing ever goes away.

The environmental crisis is a signal of this approaching catastrophe.

Environmental concern is now firmly embedded in public life: in education, medicine and law; in journalism, literature and art.

As the earth spins through space, a view from above the North Pole would encompass most of the wealth of the world - most of its food, productive machines, doctors, engineers and teachers. A view from the opposite pole would encompass most of the world's poor.

It reflects a prevailing myth that production technology is no more amenable to human judgment or social interests than the laws of thermodynamics, atomic structure or biological inheritance.

Technologists practice faith too; 'Faith that problems have solutions before having the knowledge to solve them.'