blog for 10/18 (late)

People migrate because of push forces and pull forces. Push forces would be considered civil war, environmental degradation, unemployment or underemployment, and religious or ethnic persecution. Some pull forces are a better economic opportunity, better health services, religious and political freedom. We learned about this thing called TFR which is just an acronym for total fertility rate. The total fertility rate is the average number of children born per woman. For a population to remain the same, the total fertility rate must be 2.1. If it is lower than 2.1 the population would rise, but if it is higher than 2.1, the population falls. The world total fertility rate is 2.42 (it was 2.54 two years ago, and 2.47 last year). I don't really know if those are recent statistics or not because Mr. Schick said that he updates the powerpoint every year.