ENV 1301 Lecture Notes - Lecture 8: 100 Girls, Resource Consumption, Thomas Robert Malthus

• School: Baylor University
• Department: Environmental Studies
• Course: ENV 1301
• Professor: Marcum

Document Summary

Every second, there are 3 people added to the population (births + deaths: 7,307,334,058 (beginning of class) Populations continue to rise in most countries: particularly in poverty-stricken developing nations although the rate of growth is slowing, we are still increasing in numbers. Counting to 1 billion (1/second) would take 31 years it would take 221 years to count to 7 billion. Population growth rate is measured in percent: we are growing at 1% currently. Our population grow by over 80 million each year. It took until 1800 to reach 1 billion. We added 6 more billion in 130 years. We added the most recent billion in 12 years. Because of exponential growth (increase by a fixed %), even if the growth rate remains steady, population will continue to grow. To remain at the same number of population = 0% growth: birth rate = death rate. Education and contraceptives and jobs help control the.