Population history of indigenous peoples of the Americas about one million people. The Maya population is today estimated at six million, which is about the same as at the end of the 15th century, according to some estimates. In what is now Brazil, the indigenous population declined from a pre-Columbian high of an estimated four million to some 300,000. While it is difficult to determine exactly how many Natives lived in North America before Columbus, estimates range from a low of 2.1 million to 7 million people to a high of 18 million. The aboriginal population of Canada during the late 15th century is estimated to have been
The Population Bomb all the factors affecting the human trajectory." Early editions of "The Population Bomb" began with the statement: Much of the book is spent describing the state of the environment and the food security situation, which is described as increasingly dire. Ehrlich argues that as the existing population was not being fed adequately, and as it was growing rapidly it was unreasonable to expect sufficient improvements in food production to feed everyone. He further argued that the growing population placed escalating strains on all aspects of the natural world. "What needs to be done?" he wrote, "We must rapidly bring the