POPULATION. MOST PROBLEMS OF THE ENVIRONMENT COME FROM POPULATION G...

1. Population. Most problems of the environment come from population growth. In 1700 there were 1.6 billion,

in 1950 2.5 billion, and in 1980 4.4 billion. In the year 2000 there will be 6.3 billion. More people need more

water, more food, more wood, and more petroleum.