lec02_04

lec02_04 - L 2-4:Fundamental Principles Easter Island...

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1 L 2-4:Fundamental Principles Easter Island • Isolated & small • Story of rapid population growth,over exploitation of resources and collapse of a civilization • Cards were stacked against them
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2 Easter Island
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3 Archeology Easter Island Problems • Invasive species • No coral reefs • No bread fruit • No active volcanoes • Uncertain water resources,thin soils • European contact
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4 Collapse Is Earth a Modern Easter Island? • Earth is isolated,can’t expect outside help • Earth has finite resources,and we are using some fast • Earth has more opportunities than Easter Island had. • Answer--some parallels ,Easter Island experience is a red flag,not a sign of coming disaster for Earth
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5 Human Population Growth :The Environmental Problem Human Population Growth • The human population grew at a rate unprecedented in history in the twentieth century. • Population growth is the underlying environmental problem. • Famine is one of the things that happen when a human population exceeds its environmental resources. An example is African Famine.
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6 Population Bomb Total Environmental Impact = Impact per person x Number of persons T = I x P
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7 Calcuta UC Davis
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This note was uploaded on 04/02/2009 for the course ENV S 2 taught by Professor Keller during the Winter '09 term at UCSB.

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lec02_04 - L 2-4:Fundamental Principles Easter Island...

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