Environmental Studies 2 Midterm1

Environmental - Environmental Studies 2 Midterm#1 Review Chapter 1 1 Case Study Easter Island a Story of a small isolated island with rapid

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Environmental Studies 2 Midterm #1 Review Chapter 1 1) Case Study: Easter Island a. Story of a small isolated island with rapid population growth i. Rapid population growth led to over exploitation of resources ii. Eventually led to the crash of the civilization b. Reasons for collapse i. Invasive species, lack of coral reef, no bread fruit, shitty soil/over farming, cut down all the trees, European contact 2) How it relates to our planet/Relevance? a. Earth has similar characteristics i. Isolated, finite resources, population boom—not exact parallels but definitely serves as a red flag ii. Limited resources can support only a limited human population 3) Human Population growth a. As a result of exponential growth, population has been growing at an unprecedented rate in 20 th century b. Population is the underlying/most important environmental problem i. Famine is a potential result of exceeding/overusing resources ii. Total Environmental Impact=Impact Per Person X #People 4) Sustainability a. The ability to continue to harvesting a product—long term concept (sustainable population, development, and economy) i. Sustainable growth is an oxymoron b. Obtaining sustainability i. Evolution not revolution, inclusive not exclusive, attracting not attacking, proactive not reactive 5) Carrying Capacity a. The maximum number of individuals of a species that can be sustained by an environment without lessening the environments ability to sustain that same number of individuals in the future b. Couples science with human values 6) Global Perspective a. We are currently changing the global environment i. i.e. modern chemicals are changing the ozone layer ii. Water resources involve global cycling b. Urban World i. Moving to urban regions, globalization, concentration of wealth/resources/waste 1. Wetlands are filled in, forests are cut ii. More connected to green space (we Pleistocene) 1. Principle of Environmental Unity— Everything affects everything else a. i.e. Mumbai National Reserve—Changes resulted
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because of change in soil due to wet rain years, not because of elephants c. Gaia Hypothesis i. The environment at a global level has been profoundly changed by life throughout the history of life on earth, and that these changes have tended to improve the changes that life on earth will continue ii. Life manipulates the environment for the maintenance of life 1. i.e. Algae on surface of ocean influence rainfall and the carbon dioxide level in the atmosphere affecting global climate 7) Science and Values a. Once we know our scientific options, we must make the best decision based on our values i. Science is only one way of looking at the world b. Science depends on critical thinking i. Clarity, accuracy, precision, relevance, depth, breadth, logic, significance, fairness c. Environmental Science i. Group of linked social and physical sciences ii. Attempts to explain how life is sustained—what leads to environmental problems and how they can be solved
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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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Environmental - Environmental Studies 2 Midterm#1 Review Chapter 1 1 Case Study Easter Island a Story of a small isolated island with rapid

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