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Quantity increases at a fixed percentage per unit time
Rapid, explosive growth
Doubling of pop. each generation
Variety of life forms and the habitats where they live
Ex: coral reefs, tropical rainforests
Natural sciences (biology, chemistry, physics, geology, etc.) - how the natural world works
Social sciences (economics, politics, ethics, etc.) - how humans and their institutions interact with and impact the natural world
Try to understand how the natural world works
Ex: biology, chemistry, physics, geology, etc.)
Study how humans and their institutions interact with and impact the natural world
Ex: economics, politics, ethics, etc.
Natural resources and natural services that keep us and other species alive and support our economies
Concepts and ideas that are widely accepted by experts in a particular field
Peer review process
environmentally sustainable society
Meets the current and future needs of its people for basic resources in a just and equitable manner without compromising the ability of future generations to meet their needs
Gross Domestic Product
Annual market value of all good and services produced by all firms and organizations (foreign & domestic) operating within a country
High per capita GDP
Ex: U.S., Canada, Most Western European Countries
Low per capita GDP
Some are middle-income and moderately developed
Some are low-income
Ex: China, Brazil, Kenya, Ethiopia
Time it takes for a population to double given its growth rate
Use "Rule of 70"
Divide 70 by the growth rate to get the doubling time
Anything obtained from the environment to meet our needs or wants; ex: air, coal, water, wood
Can be renewed fairly rapidly (hours to several decades); ex: wood, water, air, fish
Exist in a fixed quantity or stock in the earth's crust; ex: coal, iron, uranium
Highest rate that a renewable resource can be used indefinitely without reducing its available supply
common property or free access resources
Individuals do not own the resource and the resource is available for all to use at little or no cost
Tragedy of the Commons
Concept written about by Garrett Hardin
"If I do not use this resource, someone else will. The little bit I use or pollute is not enough to matter..."
Amount of biologically productive land and water needed to supply an area with resources and to absorb the wastes and pollution produced by such resource use
How many Earths does it take to support your way of life???
per capita ecological footprint
per person ecological footprint; higher for developed countries and lower for developing countries
Presence of an unwanted material or substance in high enough levels in air, water, soil, or food to threaten the health, survival, or activities of a living organism
Natural sources and anthropogenic sources
point source pollution
Pollutants come from single, identifiable sources
Large amount coming from an area you can point to
ex: sewage effluent, smokestack emissions
non-point source pollution
Comes from larger dispersed areas and are difficult to identify
Ex: agricultural runoff, runoff from a housing development
pollution cleanup or output pollution control
Cleaning up or diluting pollutants after they have been produced
Began 10,000 - 12,000 years ago
Allowed people to settle in villages, grow crops and raise domesticated livestock
275 years ago
Shift from rural to urban society
Shift from using human and animal power to fossil fuels
Science used to improve sanitation and control disease
50 years ago
New tech used to gain rapid access to information on a global scale
frontier environmental worldview
Most of N. America viewed as vast wilderness and resources to be conquered and managed for human use
early conservation era
1832 - 1870
Some become alarmed at the resource depletion and degradation in the U.S.
Urged U.S. gov't to protect unspoiled lands owned by the public
Your assumptions and values about how you think the world works and what your role in the world should be
planetary management worldview
We are separate from nature and nature exists mainly to meet our needs and increasing wants
Economic growth is unlimited and we can use our ingenuity and technology to manage earth's resources and services
We can manage the earth for our benefit but we have ethical responsibility to be caring, responsible stewards of the earth
Encourage environmentally beneficial forms of economic growth
environmental wisdom worldview
We are part of and totally dependent on nature
Nature exists for all species not just humans
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