GEG 1302 Lecture Notes - Lecture 8: Edward Jenner, Louis Pasteur, Wheat
Document Summary
2015: 7. 2 billion, 100 million increase per year. It took nearly 200 000 years since homo sapiens first appeared for the population to reach one billion (about 1815) Population will continue to grow, at least until mid-century. In past, concern focused on famine, insufficient food production, disease. Today, attention focuses on capacity of the global environment to sustain a large population. Enormous amounts of waste (greenhouse gases, physical waste, waste water) Israel uses half its water for agriculture even though it only contributes to 1% of the economy. The study of human populations and their characteristics. Relationship between population, resources use and environmental quality. Reasons for and consequences of population distribution. Measure of how long it takes for a population of a region to double in size. At a growth rate of 1. 8% per year, the population doubles in about 40 years. Biological: young women with higher body fat are more fertile.
