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Nonrenewable Resources
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–Limited Supply: minerals, fossil fuels
–Once they are gone, they are gone
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Renewable Resources
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–Virtually unlimited: solar power,
water, soil, etc.
–Replenished over short periods (days to
decades)
–Easy to overexploit--> nonrenewable
•Soil, fresh water, clean air
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Consumption Overpopulation
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Consumption is high because each individual consumes too much, even if total population is low
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People Overpopulation
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Consumption is high because there are too many people, even if individual consumption is low
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Poverty
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Condition is which people are unable to meet their basic needs for food, clothing, shelter, education, health
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Scientific Method
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1. recognize problem2. develop hypothesis to explain make predictions3. design and perform experiment to test hypoth.4. analyze and interpret data to reach conclusions5. share knowledge
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Ecological Footprint
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–The amount of land, fresh water, and
ocean required on a continuous basis to supply a person with food, wood,
energy, water, housing, clothing, transportation, and waste disposal.
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How is human impact on the environment stressed?
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I=PxAxT
•I: Environmental impact
•P: Population (number of people)
•A: Affluence per person (amt of resources)
•T: Technology used to get resources
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Goals of Sustainability
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Prevent and Reduce wasteuse resources efficientlystabilize human population
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5 stages of addressing environmental probs
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Scientific Assessment, risk assessment, public education, political action, long term environmental management
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Biodiversity
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Number and variety of organisms
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Carry capacity
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Maximum population that can be sustained by a given environment/world
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Deep Ecology Worldview
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Based on harmony w/ nature, spiritual, respect of nature
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Western Worldview
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Human centered, anthropocentric, unrestricted use of natural resources
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Environmental ethics
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•Environmental Ethics:
considers the moral basis of environmental responsibility
–Considers the rights of people living today AND of
future generations
–Critical because our actions today affect the
environment in the future
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