Human Georgraphy- world population growth

World population growth

• the worlds population is growing rapidly
• it took until 1804 to reach the first billion
• the second billion took 123 years and the third billion took only 32 years
• in 12 years, from 1987 to 1999, the population grew from 5 billion to 6 billion
• it is expected to reach 7 billion in 2011
• the latest prediction from demographers- the people who study population- is that the world population will level off at 8-10 billion around 2050

changing population

ninety-five pe rcent of all population growth since 1950 has been in low-income countries, especially in the very poorest countries. this is because…