[EESA01H3] - Midterm Exam Guide - Ultimate 12 pages long Study Guide!

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5 Oct 2016
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UTSC
EESA01H3
MIDTERM EXAM
STUDY GUIDE
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EESAO1 - Lecture 1 – What is Environmental Science?
“Tragedy of the Commons”:
When there are unregulated resources, it does not take much to deplete those
resources
It is a sociological theory.
Concept proposed by Garret Harden (Ecologist from UCSB) in 1968
Resource users are tempted to increase use until the resources are gone
In general, in Canada, resources are regulated well but depletion of the regulated
resources is fast.
Rapa Nui (Easter Island):
The civilization moved step backwards because of the depletion of their
resources
They had so much resources from fishing, etc.
Environmental Science:
How things operate?
oExample: How thunderstorm happens?
How do we affect the Environment?
oExample: How we make thunderstorm happen
Interdisciplinary Science:
oLots of discipline such as chemistry, biology and even math
oDifferent disciplines used to manage impacts to understand how the
environment works
Environmental Issues:
Massive population growth
Consumption(Energy)
Slow reaction to some environmental problems
oWe are not coming up with ways to solve these problems
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The IPATS Model:
I = P × A × T × S
Impact
Population
Affluence
oHow much money you have
oMore money, more impact in the Environment
oMore money can produce more things which can impact the environment
Technology
oCan have bad or good impact
oTechnology is really in this equation that can lessen impact
oIt can produce products that lessens impact but some can add impact
oTechnology can increase or decrease impacts
Sensitivity
oEnvironmental Stress
oSome environments are more sensitive than others
oExample: If the temperature in arctic goes up by 2°C, ice will melt
oDifferent environments reacts with different impacts
Ecological Footprint:
Area needed to support one person
Example: You eat or drink to how much land did it cause the environment
We are consuming significantly resources than we can sustain
Biocapacity:
Overshooting biocapacity can cause permanent damage
Capacity of an ecosystem to be biologically productive and to absorb waste and
carbon dioxide
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