Our numbers expand, but Earth's natural systems do not.

Nations are in effect ceding portions of their sovereignty to the international community and beginning to create a new system of international environmental governance.

One way or another, the choice will be made by our generation, but it will affect life on earth for all generations to come

Another agricultural trend of growing concern is the increased nutrient content of coastal waters resulting from fertilizer runoff in agricultural regions. Augmented by urban sewage discharge in some situations, this results in huge algal blooms, which, as they die and decay, deplete the oxygen content in the water, leading to the death of the fish.

In this era of tightening world food supplies, the ability to grow food is fast becoming a new form of geopolitical leverage, and countries are scrambling to secure their own parochial interests at the expense of the common good.

Saving civilization is not a spectator sport.

Farmers...can no longer keep up with rising demand; thus the outlook is for chronic scarcities and rising prices.