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climate change intro + causes
what is happening to our climate?
where’s the ice?
where’s the ice?
where’s the ice?
WHY is this
happening?
• Define “climate change”
• Explain natural causes of climate change
• Explain human causes of climate change
by the end of the lesson
quiz!1\
qns 1Climate Change is the same as Global Warming
5:20
True? False?
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.
qns 2Climate Change is caused by humans only.
True? False?
qns 2Climate Change is caused by humans only.
True? False?
There are natural causes to climate change.
qns 3Climate Change is a recent phenomenon
True? False?
qns 3Climate Change is a recent phenomenon
True? False?
Earth Climate has been changing as a cycle naturally for millions of years.
Temperature of the world has been changing throughout history naturally.
There were times where Earth was cooler than today = ice age
qns 4Since there has been climate change throughout history, there is nothing to worry.
True? False?
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.
Climate Change has been within a small temperature range
Climate Change has been within a small temperature range
But since 1881, the increase is higher than what happened in history
key concepts
2
climate change= changes / variations in global climate patterns in the long term
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!
climate change= changes / variations in global climate patterns in the long term
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
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…
greenhouse effectNATURAL effect of greenhouse gases trapping energy from the sun to warm the Earth.
greenhouse effect
But if we…..
greenhouse effect
But if we…..
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
greenhouse effect
But if we…..
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases
+ Greenhouse Gases
+ Greenhouse Gases+ Greenhouse Gases+ Greenhouse Gases
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 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 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
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
enhanced greenhouse effect
≠ (is not the same as)
global warming
enhanced greenhouse effect
≠ (is not the same as)
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
enhanced greenhouse effect
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
enhanced greenhouse effect
global warming
= more greenhouse gas = more greenhouse effect
= more heat trapped
= increase in temperature
one of the causes of
once we understand the concepts…
how do we explain that something caused climate change?
Let’s work backwards…
climate change
climate change
global warming
Indicates
climate change
global warming
Indicates
global cooling
Indicates
climate change
various factors
climate change
global warming
Indicates
various factors
climate change
global warming
Indicates
global cooling
Indicates
various factors
climate change
global warming
Indicates
global cooling
Indicates
increase in global temp.
various factors
climate change
global warming
Indicates
global cooling
Indicates
increase in global temp.
decrease in global temp.
various factors
once we understand the concepts…
causes of climate change
3
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