Download Lecture 22

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Onyema and Jiayuan
Alejandra and Erica
Chris and John W.
Ryan and Dian
John F. and Michael
Walter and Honglu
Max and Matt
Amanda and Lin
Pauline and Anwen
Jennifer and Mengyue
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Jake and Jason
Phys
Phys150
150 Lecture
Lecture22
7
1
Announcements
• Homework 10 is due on Sunday, April 14
at midnight.
• Exam 2 is Thursday, April 18 in class.
Covers Chapters 6-10.
Phys 150 Lecture 22
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2
Chapter 10 – Climate Change
• IPCC – Intergovernmental Panel on Climate
Change (UN)
• UIUC connection: Professor Wuebbles
(Atmosphere Science and ECE)
• Charles Keeling: UIUC Chemistry degree
(1948)
Phys 150 Lecture 22
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Chapter 10 – Climate Change
• IPCC – Intergovernmental Panel on Climate
Change (UN)
• UIUC connection: Professor Wuebbles
(Atmosphere Science and ECE)
• Charles Keeling: UIUC Chemistry degree
(1948)
Phys 150 Lecture 22
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i>clicker question
Which of these are evidence for global
warming?
A.
B.
C.
D.
Rising surface temperature
Rising sea level
Melting snow and ice
All of the above
Phys 150 Lecture 22
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i>clicker question
Which of these are evidence for global
warming?
A.
B.
C.
D.
Rising surface temperature
Rising sea level
Melting snow and ice
All of the above
-
However, this does not imply that the warming
is caused by humans
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IPCC 2007
Berkeley Earth
2/3 expansion, 1/3 melting ice
Thermometer
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i>clicker question
Since 2000, the Earth’s temperature has
A.
B.
C.
D.
increased at an accelerated rate
increased
not changed
decreased
Phys 150 Lecture 22
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i>clicker question
The very hot and dry summer we had is
A.
B.
C.
D.
certainly due to global warming
likely due to global warming
perhaps due to global warming
unrelated to global warming
Phys 150 Lecture 22
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i>clicker question
The very hot and dry summer we had is
A.
B.
C.
D.
certainly due to global warming
likely due to global warming
perhaps due to global warming
unrelated to global warming
“Climate change” - more extreme heat events
Phys 150 Lecture 22
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i>clicker question
The IPCC claims that most of the global
warming since 1950 is very likely due to
A.
B.
C.
D.
E.
natural solar cycles
volcanic activity
human-caused greenhouse gases
All of the above
None of the above
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i>clicker question
The IPCC claims that most of the global
warming since 1950 is very likely due to
A.
B.
C.
D.
E.
natural solar cycles – cooling
volcanic activity - cooling
human-caused greenhouse gases
All of the above
None of the above
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i>clicker question
The earth emits radiation into space
primarily as
A.
B.
C.
D.
visible light
near infrared radiation
mid infrared radiation
ultraviolet radiation
Phys 150 Lecture 22
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i>clicker question
The earth emits radiation into space
primarily as
A.
B.
C.
D.
visible light
near infrared radiation
mid infrared radiation
ultraviolet radiation
Phys 150 Lecture 22
IR camera
15
i>clicker question
The most important greenhouse gas is
A.
B.
C.
D.
water vapor
carbon dioxide
methane
nitrous oxide
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i>clicker question
The most important greenhouse gas is
A.
B.
C.
D.
water vapor
carbon dioxide
methane
nitrous oxide
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i>clicker question
During the last ice age, the Earth was
colder by about
A.
B.
C.
D.
1F
5F
10 F
15 F
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i>clicker question
During the last ice age, the Earth was
colder by about
A.
B.
C.
D.
1F
5F
10 F
15 F
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i>clicker question
The greenhouse effect warms the Earth by
about
A.
B.
C.
D.
1F
2F
20 F
60 F
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i>clicker question
The greenhouse effect warms the Earth by
about
A.
B.
C.
D.
1F
2F
20 F
60 F
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