Extinction+-+Week+3+-+Lec+1

Extinction+-+Week+3+-+Lec+1 - WEEKTHREE 8parts(, I....

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WEEK THREE 8 parts (think of this as a conversation, discussion or discourse) I. An Example of an Extinction Challenge II. But Wait, What is Extinction Anyway? III. One Possible Answer: The Relationship Between Life and Information IV. So, If We Start at the Beginning Then the Origin and History of Life Is Important V. Extinction: Past and Future VI. Geologic Time VII. The History of Extinction VIII. Extinction Causality
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Famine seems to be the last, the most dreadful resource of nature. The power of population is so superior to the power in the earth to produce subsistence for man, that premature death must in some shape or other visit the human race. 1. Population growth 2. Resource availability I. A. Observations
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The vices of mankind are active and able ministers of depopulation. They are the precursors in the great army of destruction; and often finish the dreadful work themselves. But should they fail in this war of extermination, sickly seasons, epidemics, pestilence, and plague, advance in terrific array, and sweep off their thousands and ten thousands. Should success be still incomplete, gigantic inevitable famine stalks in the rear, and with one mighty blow levels the population with the food of the world. I. A. Observations
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A Proposition for Your Consideration The rate of human population growth appears too high for current levels of consumption. (Smail, 2002 in the American Journal of Physical Anthropology) I. B. Is there a problem?
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1900 to now: Population has gone from 1.6 billion to more than 6 billion I. A. 1. Population growth
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Another demographic issue: Population has forward momentum At replacement rate, ~ 2.1 children per female it would still take 2-3 generations for population to stabilize. Almost 1/3 of world population (more in developing world) is under 15 and has not yet reproduced. Current composite fertility rate for less developed world (excluding China) ~ 3.7 children per female. Population growth fueled by continued decline in mortality rate. The phenomenon is global. The issue is now and will confront those already born . I. A. 1. Population growth
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Our question is: What is the relationship between current population, current population growth, projected future population and carrying capacity? Are you a “cornucopian optimist” or a “neo-Malthusian pessimist”? I. A. 2. Resource availability
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Economic forecasting is done on 5-15 yr.framework, not 100’s of yrs. 80% of the Earth’s population have a standard of living from “mild deprivation to “severe deficiency” I. A. 2. Resource availabilty
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Do we live fat and happy or miserable and deprived?
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This note was uploaded on 11/20/2011 for the course SCIENCE 070:111 taught by Professor Romero during the Fall '09 term at Rutgers.

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Extinction+-+Week+3+-+Lec+1 - WEEKTHREE 8parts(, I....

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