Climate change poses an increasing threat to the well-being of humanity both for present and future generations. In fact, it is increasingly understood to have become a question of survival for a large part of mankind. The scientific community is overwhelmingly convinced that ongoing climate change is caused primarily by the increase of man-made greenhouse gas emissions and by the over-consumption of natural resources as a result of the lifestyles of the industralised societies, the societal and economic systems underlying these lifestlyles and the increasing pressure this puts on people and resources in the developing world. This reports agrees that the issue goes beyond climate change: it is simply a visible symptom of the non-sustainability of our way of life. Meeting the challenge of climate change must therefore be seen in the context of sustainability in a just world offering an equal sense of well-being to peoples all over the world and over all the generations of mankind.