EARTH 20 Lecture Notes - Lecture 3: Thomas Robert Malthus, Return Period, Logarithm
Document Summary
Public health principles established, causes of diseases identified. Growth is still ihhg, but the rate of growth is decreasing. More than the population of germany is added to the planet each year. Growth rate in 1950 (1. 89%) vs. 2009 (1. 19%) Demographic transition theory (stages 1-4 remember apes) Growth rate in 2050 predicted to be . 56%/yr (still almost 9. 5 billion) Shows size of country in relation/proportion to its population. World"s two most populous countries (china and india) each have >1 billion people. Asia, southeast asia, african nations and india/china largest > most significantly impacted (economy and population) by disasters. Power of the population is indefinitely greater than the power in the earth to produce substance for man . Humans will reach a carrying capacity and run out of resources, followed by famine, drought, etc. to naturally eliminate excess population. We haven"t seemed to reach it (until legit this year) Climate, geology, vegetation, land use and population.
