World Economic and Social Survey 2011
Enormous improvements in human welfare have taken place over the past two centuries, but these have been unevenly distributed and have come at a lasting cost of degradation of our natural environment. At the same time, we cannot stop the engines of growth, because much more economic progress is still needed in order for people in developing countries to have a decent living. But using the traditional environmentally irresponsible development paths is no longer defensible.