In 1985, after much initial debate and controversy, the world took its first steps in the Vienna Convention on the Protection of the Ozone Layer. In four steps, the world was able to quickly and painlessly head off a major threat.
Global processes have taken us halfway toward the goal of sustainable development.
The world has achieved marked success, backed by remarkable global cooperation, in the fight against environmental degradation, population increases, and extreme poverty.
Yet our combined efforts, great as they have been, have fallen far short of what is needed.