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5.1 ecological degradation (sustainability: how humans use resources and…
5.1 ecological degradation
sustainability: how humans use resources and if they leave some for future gens
biological diversity
food production
avg global surface temps
CO2 concentrations
human population
resource depletion
measured by: sustainable yield
tragedy of the commons suggests said resources are depleted
no more resource=no one benefits
natural resources
goods
renewable
land
life(biodiversity)
trees
topsoil
nonrenewable
iron
sand
oil
natural gas
copper
inexhaustible
topsoil
water
sun
air
services
population control
pest control
food productions
nutrient recycling
soil renewal
air purification
climate control
UV protection(ozone layer)
water purification
waste treatment
inexhaustible
solar energy
wind energy
geothermal energy
ecological footprints:
how much resources a human uses
resource demands
waste production
measured by: bio capacity
how much damage an ecosystem can take
eco footprint>bio capacity=
unsustainable
natural capital/environmental degradation
ecological deficit
eco.footprint<biocapacity=
sustainable
socio economic causes of enviro probs
population growth
exponential growth by 1.05%
2050= 9.8b people
wasteful and unsustainable resource use
better economy
avg income
high developed countries
industrialized=high income
moderately developed
industrialized=middle income
low developed
low income
eco footprint
per capita eco footprint
eco footprint
most developed 17% of population uses 70% of resources
poverty
1/3 people (2.6B) had >$2.25 a day
52% lived with>$1.25 a day in 1981, 14% lived with >$1.25 a day in 2014
lack of education
increasing isolation from nature
more people are moving from rural to urban areas
leads to more enviro destruction for more infrastructure
competing enviro worldviews
personal wealth above enviro well being cz they'll be dead and wont affect them
ecological racism/prejudice
omission of harmful environmental health costs of goods and services
companies not required to pay for damage done to enviro
maximize their profits, not minimize their impact
non sustainability
mininng and use of fossil fuel
habitat destruction especially forests
climate change
air pollution
water pollution
soil pollution
residential expansions
habitat destruction especially forests
depletion of aquifers
non sustainable livestock farming
habitat destruction especially forests
soil erosion
depletion of aquifers
climate change
water pollution
soil pollution
non sustainable agriculture
habitat destruction (forests)
species extinctions
soil erosion
depletion of aquifers
water pollution
non sustainable fishing
habitat destruction
species extinctions
non sustainable forestry
habitat destruction (forests)
species extinctions
soil erosion
climate change
water pollution