Major international, interdisciplinary research programmes are now underway to increase our understanding of how the Earth System operates and how it is changing through the effects of human activities. Although understanding and predictive capacity are still limited, scientists already agree that significant global changes must be expected in the next 50 years that will affect the capacity of the Earth to sustain life.
Governments, business and industry have, therefore, come to recognize that scientific knowledge about the changing global environment - as yet incomplete but rapidly...