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With Correct Answers || || ||
Human Population Growth - CORRECT ANSWERS(S)✅✅-
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Currently increasing at a rate of 1 billion people every 13
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years ||
-Growth is proportional to population
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-Equivalent to doubling in fixed intervals || || || || || ||
-Natural populations grow rapidly until they reach
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carrying capacity || ||
-When a population reaches its capacity: Population
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stabilizes, Overshoot & crash, Export Emigrants
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Carrying Capacity - CORRECT ANSWERS(S)✅✅max
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number of plants, animals, bacteria, etc. that an
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environment can sustain. (NOT CONSTANT; health of || || || || || || ||
ecosystem, per capita resource utilization, quality of life,
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technology)
Sustainability - CORRECT ANSWERS(S)✅✅-Of a resource: || || || || ||
harvest no more than is replaced
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-Of an ecosystem: human stressors, natural disturbances,
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ecosystem resilience, biodiversity
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,Key Characteristics of Sustainability - CORRECT
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ANSWERS(S)✅✅-Populations that live without conflict || || || || ||
with nature ||
-energy policy that minimizes pollution and risk
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-restrained (planned) use of renewable resources
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-minimizations of the use of nonrenewable || || || || || ||
resources(leaving some for future generations) || || || ||
-a political system that prioritizes long term prosperity
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over short term gain || || ||
Renewable Resources - CORRECT || || || ||
ANSWERS(S)✅✅sunlight, wind energy, wave energy, || || || || ||
geothermal energy ||
Non renewable resources - CORRECT
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ANSWERS(S)✅✅crude oil, natural gas, coal, copper, || || || || || ||
aluminum
A Global perspective - CORRECT ANSWERS(S)✅✅-Global
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perspective is a recent idea (but very real)
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-Local actions have distant consequences (linked by
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atmosphere and water) || || ||
-DDT-1962 (industrial pesticide, long half life in soils,
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transported by runoff and rivers, bio accumulates, linked
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to declines in aquatic life and birds, human toxicity
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,-The ozone hole- O3 protects life from harmful UV rays
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-O3 is destroyed by halogens (CFC; used in refrigerants)
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-CFCs have created an ozone hole in Antarctica
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An urbanizing world - people & nature - CORRECT
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ANSWERS(S)✅✅-Cities are growing rapidly; pos and neg || || || || || || ||
for environment
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-Can be more efficient; if designed that way
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-Humans are a product of nature and have shaped and
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been shaped by the rest of the natural word since dawn of
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our species
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-Prehistoric humans drove most of large mammals in || || || || || || || ||
North America to extinction (also invented agriculture and
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reshaped entire ecosystem)
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Natural World - CORRECT ANSWERS(S)✅✅ecosystems
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are in a continual state of flux, evolution is proceeding
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Decision Making relies on... - CORRECT || || || || || ||
ANSWERS(S)✅✅1. Values: Protection of ecosystem & || || || || || ||
species, human equality, economic progress, future
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generations ||
, 2. Science: determine likely outcomes of different
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scenarios, assess uncertainty of outcomes
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Science & Values - CORRECT ANSWERS(S)✅✅-Scientific
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Knowledge is always being challenged || || || || ||
-Theories can be disproven, never proven
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The "classic" scientific method is: - CORRECT
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ANSWERS(S)✅✅- Observe phenomena || || ||
- Formulate a question
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- Develop a hypothesis
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- Make predictions from hypothesis
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- Conduct experiment (test) with potential to disprove
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hypothesis ||
- Analyze results
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Precautionary Principle - CORRECT ANSWERS(S)✅✅- || || || ||
Scientific knowledge always comes with a degree of
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uncertainty ||