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8.4 Human systems and resource use - Coggle Diagram
8.4 Human systems and resource use
Human carrying capacity
Difficulties in measuring human K
humans can substitute resources
resource use various for each person depending on lifestyle, culture and economic situation
humans use a great range of resources
humans can import resources (this impacts the local K but not the global K)
technological developments change the resources we use
Ways to change human K
ecocentrists: reduce use non-renewable NC and minimise use of renewable NC, become self-sufficient to varying degrees
technocentrists: believe that human K will continue to increase with technological innovations and advancements
depends on EVS
Reducing environmental demands
Reuse
: use object more than once
Recycle
: object's material is used again to manufacture a new product
Remanufacture
: object's material is used to make a new object of the same type
Absolute reduction
: simply use fewer resources
EF
the area of land and water required to support a defined human population at a given standard of living
model used to estimate the demands that human populations place on the environment
takes into account the area of land and water required to provide all the resources needed by the population, and the assimilation of all wastes
Unsustainability: EF > area of population
EFs vary due to lifestyle (EVS), productivity of food production systems, land use and industry
the inverse of K
ecological footprint of a country depends on its population size and consumption per capita