Man seems to insist on ignoring the lessons available from history.
Clearly, we need to rethink our attitudes about water and move away from thinking of it as nearly a free good and a God-given right.
Contrasting sharply, in the developing countries represented by India, Pakistan, and most of the countries in Asia and Africa, seventy to eighty percent of the population is engaged in agriculture, mostly at the subsistence level.
During the past three years spectacular progress has been made in increasing wheat, rice, and maize production in several of the most populous developing countries of southern Asia, where widespread famine appeared inevitable only five years ago.
As far as plants are concerned, they can't tell whether that nitrate ion comes from artificial chemicals or from decomposed organic matter.
Cereal production in the rain-fed areas still remains relatively unaffected by the impact of the green revolution, but significant change and progress are now becoming evident in several countries.
Water covers about 70 percent of the Earth's surface. Of this total, only about 2.5 percent is fresh water, and most of this is frozen in the ice caps of Antarctica and Greenland, in soil moisture, or in deep aquifers not readily accessible for human use.
Unless there is one master gene for yield, which I'm guessing there is not, engineering for yield will be very complex. It may happen eventually, but through the coming decades, we must assume that gene engineering will not be the answer to the world's food problems.
Central African farmers don't have any animal power because sleeping sickness kills all the animals - cattle, the horses, the burros and the mules. So draft animals don't exist, and farming is all by hand, and the hand tools are hoes and machetes.
Abnormal stresses and strains tend to accentuate man's animal instincts and provoke irrational and socially disruptive behavior among the less stable individuals in the maddening crowd.
Plant diseases, drought, desolation, despair were recurrent catastrophes during the ages - and the ancient remedies: supplications to supernatural spirits or gods.
The breakup of the former Soviet Union has caused its grain output to plummet, but if the new republics recover economically, they could produce vast amounts of food.
Almost certainly, however, the first essential component of social justice is adequate food for all mankind.
The lack of roads in Africa greatly hinders agriculture, education, and development.
Man's survival, from the time of Adam and Eve until the invention of agriculture, must have been precarious because of his inability to ensure his food supply.