t2 w3 causes of climate change
TRANSCRIPT
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climate change intro + causes
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what is happening to our climate?
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where’s the ice?
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where’s the ice?
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where’s the ice?
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WHY is this
happening?
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• Define “climate change”
• Explain natural causes of climate change
• Explain human causes of climate change
by the end of the lesson
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quiz!1\
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qns 1Climate Change is the same as Global Warming
5:20
True? False?
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qns 1Climate Change is the same as Global Warming
5:20
True? False?
Climate change = climate patterns changing. It’s not just warming. Includes cooling.
Global warming = increase in temperature ONLY.
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qns 2Climate Change is caused by humans only.
True? False?
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qns 2Climate Change is caused by humans only.
True? False?
There are natural causes to climate change.
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qns 3Climate Change is a recent phenomenon
True? False?
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qns 3Climate Change is a recent phenomenon
True? False?
Earth Climate has been changing as a cycle naturally for millions of years.
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Temperature of the world has been changing throughout history naturally.
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There were times where Earth was cooler than today = ice age
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qns 4Since there has been climate change throughout history, there is nothing to worry.
True? False?
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qns 4Since there has been climate change throughout history, there is nothing to worry.
True? False?
The recent changes since 1881 is more significant than what happened in history.
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Climate Change has been within a small temperature range
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Climate Change has been within a small temperature range
But since 1881, the increase is higher than what happened in history
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key concepts
2
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climate change= changes / variations in global climate patterns in the long term
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climate change= changes / variations in global climate patterns in the long term
= not just changes in average temperature. Eg: Changes in when the seasons occur is also climate change!
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climate change= changes / variations in global climate patterns in the long term
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climate change= changes / variations in global climate patterns in the long term
one
way
it h
appe
ns…
global warmingINCREASE in global temp. after a long period of time
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climate change= changes / variations in global climate patterns in the long term
one
way
it h
appe
ns…
global warmingINCREASE in global temp. after a long period of time
global coolingDECREASE in global temp. after a long period of time
one way it happens…
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greenhouse effectNATURAL effect of greenhouse gases trapping energy from the sun to warm the Earth.
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greenhouse effect
But if we…..
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greenhouse effect
But if we…..
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
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greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
= ENHANCED greenhouse effect
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enhanced greenhouse effect
≠ (is not the same as)
global warming
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enhanced greenhouse effect
≠ (is not the same as)
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
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enhanced greenhouse effect
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
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enhanced greenhouse effect
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
one of the causes of
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once we understand the concepts…
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how do we explain that something caused climate change?
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Let’s work backwards…
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climate change
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climate change
global warming
Indicates
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climate change
global warming
Indicates
global cooling
Indicates
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climate change
various factors
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climate change
global warming
Indicates
various factors
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climate change
global warming
Indicates
global cooling
Indicates
various factors
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climate change
global warming
Indicates
global cooling
Indicates
increase in global temp.
various factors
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climate change
global warming
Indicates
global cooling
Indicates
increase in global temp.
decrease in global temp.
various factors
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once we understand the concepts…
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causes of climate change
3
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refer to your textbook pg 98-108fill up the story in the handout
determine what are the possible reactions and outcomes
try mission on coursemology