Our challenge, our generation's unique challenge, is learning to live peacefully and sustainably in an extraordinarily crowded world. Our planet is crowded to an unprecendented degree. It is bursting at the seams. It's bursting at the seams in human terms, in economic terms, and in ecological terms
The defining challenge of the 21st century will be to face the reality that humanity shares a common fate on a crowded planet.
This is our greatest challenge: learning to live in a crowded and interconnected world that is creating unprecedented pressures on human society and on the physical environment.
The idea that the UN system could provide real leadership on the great development challenges will strain credulity in some quarters.
Soil mapping is one of the pillars to the challenge of sustainable development
