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Renewable resources (like solar power or wind) are
ones that will continue to be available because they
naturally replenish as fast or faster than they are
Nonrenewable resources (like oil or coal) are those are
not replenished as fast as they are being used.
Therefore, there must be a balance between resource
varieties and consumption—the future must be
sustainable Implications of Sustainability Energy:
areas. Implications of Sustainability
Energy Implications increasing energy
alternatives to burning
limited reserves of fossil
fuels. Alternatives include solar,
wind, geothermal and nuclear
energy. Can we supply sufficient resources and
maintain a quality environment in the future?
1) 1/3 of world’s cropland abandoned during
past 40 years due to erosion.
2) Pressure for new cropland results in 60-80%
of deforestation - soil loss and global
3) 90% of diseases in developing countries
comes from lack of clean water. Considerations for Aiding
Carrying Capacity – the number of people that
Earth can support sustainably at a defined
level of economic and social well being.
How many people can Earth support without
irreversible depletion of its resources? Easter Island - an example of
Carrying Capacity Overload Easter Island
Once lush, but
and the society
unsustainable. Figure 1-16 How People and Earth Interact:
Hazardous Earth Processes
There have always been earth processes
that are hazardous to people.
These natural hazards must be recognized
and avoided where possible and their
threat to human life and property
minimized. Increasing Costs of Natural Disasters Amount of money spent on disaster
relief has more than tripled as a
function of GDP during the last 50
years. Hurricane Katrina was a terrible
natural disaster in U.S. history, with
over 1800 deaths and an estimated
$200 billion in prop...
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This note was uploaded on 04/02/2013 for the course 460 202 taught by Professor Sugarplum during the Fall '13 term at Rutgers.
- Fall '13