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Geography and Human Impact
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Geography and Human Impact
Get Ready: What do you know about "Climate Change?"
Get Ready:
We have discussed how humans can adapt to an environment.
But what impact do humans have on their environment?
What do you think caused the effect seen in this video?
Answer in 2-3 sentences
Hot Water
Hydro-Fracturing
Renewable and Non-renewable
extraction
Things like Natural Gas and Petroleum (gasoline) are formed when layers of decomposing plant and animal matter are exposed to intense heat and pressure under the surface of the Earth over millions of years. When burned, produce lots of energy, but they are not RENEWABLE.
There's lots of it, but once it's gone, it's gone.
Renewable Energy
Controversy: Invest in Renewables?
Renewable energy does not produce as much power as non-renewable, but they never run out.
Wind turns large turbines, generating electricity.
Solar Power cells store solar energy.
Read: https://alternativeenergy.procon.org/view.resource.php?resourceID=001792
Use the Start the Discussion Stems to ask a question or answer using evidence from the text.
Renewable?
So, this is nuclear power, right?
Absolutely not.
Nuclear power is much simpler than nuclear weapons, requiring only somewhat enriched nuclear material to superheat water, creating steam, which turns a turbine.
Nuclear?
Human Progress?
Case Studies
As human populations grow, they are capable of making radical changes to their environment.
Modern cities can have a profound impact on the surrounding ecosystems.
Climate Change
Unfortunately, a giant ice cube won't work. Let's read about what will.
A result of human activity
Let's interpret some DATA.
https://www.carbonbrief.org/global-co2-emissions-have-been-flat-for-a-decade-new-data-reveals
Based on the graphs we see, how is the United States doing? What nations are failing?
Consequences of development
Historical Case Study: The Dust Bowl
The Dust Bowl was a period of severe dust storms that greatly damaged the ecology and agriculture of the US and Canadian prairies during the 1930's.
A historian's job is to examine evidence to answer historical questions. In this case, we're asking...
"What caused the Dust Bowl of the 1930s?"
Case Study #2
Investigating the Dust Bowl
Discuss:
Based on your research, what was the cause of the dust bowl?
Why do you think there are differences in opinion about what caused the problem?
Is one explanation "more correct" than the other?
In research groups, analyze your text and the map, and use both to explain the the CAUSES of the Dust Bowl.
What CAUSED the Dust Bowl?
What changes to the environment occurred? How were people living react to these changes?
Answer all questions in one full paragraph
Task
Exit Question: Could the US experience an ecological crisis like the Dust Bowl again? Why or why not?