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8.4 Human Systems & Resource Use (Difficulties in Measuring Human…
8.4 Human Systems & Resource Use
Definitions
Carrying Capacity
maximum number of species that can be sustainably supported by a given area
Ecological Footprints (EF)
the area of land and water required to support a defined human population at a given standard of living
Difficulties in Measuring Human Carrying Capacity
Substitute resources if scarce
Resource use varies
Use a greater range of resources
Import resources
Development in technology
Ways to Change Human Carrying Capacity
Ecocentrist
Minimize use of both renewable and non-renewable sources
Self sufficient
Technocentrist
Capacity expanded with technological innovation
Efficient use of resources
Ecological Footprints
estimate the demands that human populations place on the environment
EF> area available for population
unsustainability occurs
Increased by
Increased use of technology & energy
Meat rich diet
High levels of imported resources
Greater reliance on fossil fuels
Large consumption of food per capita
Large production of carbon waste per capita