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Introducing Environmental Science and Sustainability
Introducing Environmental Science and Sustainability
Chapter 1
SustainabilitySustainability
Web Definitions:Social and environmental practices that protect and enhance the human and natural resources needed by future generations to enjoy a quality of life equal to or greater than our own.
A strategy by which communities seek economic development approaches that also benefit the local environment and quality of life. ...
Systems PerspectiveSystems Perspective
What is this and what other perspective might we have had at one time?
What is this and what other perspective might we have had at one time?
Earth AgesEarth Ages
Extreme PovertyExtreme Poverty
1:2 earn less than two dollars a day
Poverty
1:2 earn less than two dollars a day
Poverty
Increasing Human Numbers
Old World At Night
How many is too many?
Could We All Live In…1. Could we all live in Georgia?
- 43,560 Square feet in an acre or 91% of a football field minus the end zones- 640 acres in a square mile- 57,906 square miles in Georgia
Georgia = 37,059,840 AcresTexas = 172 Million and changeUS Population = 304 Million
2. 11,000,000 acres of land devoted to farms in Georgia
3. 23,631,000 acres devoted to timber in Georgia
Hectares of Land Required
Ecological footprintOne U.S. Child has a 1:12 Ratio of consumption
Overpopulation Vs Consumption
Resources
The Middle Class
Why is a middle class significant?
Environmental Impact
IPAT Model
I = P A T
New Model IPAT
I = P x A x T1
I = P x A T2
Ray C. Anderson
Tragedy of CommonsSustainability and the Tragedy of the Commons
Garrett Hardin
In England and Wales, a common (or common land) is a piece of land over which other people—often neighboring landowners—could exercise one of a number of traditional rights, such as allowing their cattle to graze upon it. - HOA
Feedback
Scientific Method - relative to our study
"The greatest invention of the nineteenth century was the invention of the method of invention." -- A.N. Whitehead (1926)
Steps:1.Observation and description of a phenomena2.Formation of a hypothesis3.Use hypothesis to predict phenomena -
experiment - null hypothesis4. Independent testing by others5.Share your results - publish
A theory can never be proven only disproved
Environmental Science
Hypothesis: Burning will increase frequency of prairie wildflowers.
Which is the: control group, IV, DV
Experimentation
Independent Variable (IV): The Independent part is what you, the experimenter, changes or enacts in order to do your experiment. X axis
Dependent Variable (DV): The dependent variable is what changes when the independent variable changes. There can be more than one dependent variable. Y Axis
Control Group:Control Group: A trial in an experiment where all factors are kept from changing.
Constants: unchanging qualities
Lake Washington & Pugent Sound
What was done here, and what was the case used to demonstrate?