Phys 150 Lecture 71 Please sit together in pairs: –Onyema and Jiayuan –Alejandra and Erica –Chris and John W. –Ryan and Dian –John F. and Michael –Walter.

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Presentation transcript:

Phys 150 Lecture 71 Please sit together in pairs: –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 –Alexandra and Melissa –David and Erich –Abigael and Irfan –Jake and Jason Phys 150 Lecture 221

Phys 150 Lecture 162 Announcements Homework 10 is due on Sunday, April 14 at midnight. Exam 2 is Thursday, April 18 in class. Covers Chapters Phys 150 Lecture 222

3 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 224 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 225 i>clicker question Which of these are evidence for global warming? A.Rising surface temperature B.Rising sea level C.Melting snow and ice D.All of the above

Phys 150 Lecture 226 i>clicker question Which of these are evidence for global warming? A.Rising surface temperature B.Rising sea level C.Melting snow and ice D.All of the above -However, this does not imply that the warming is caused by humans

Phys 150 Lecture 227 IPCC 2007 Berkeley Earth 2/3 expansion, 1/3 melting ice Thermometer

Phys 150 Lecture 228 i>clicker question Since 2000, the Earth’s temperature has A.increased at an accelerated rate B.increased C.not changed D.decreased

Phys 150 Lecture 229 i>clicker question The very hot and dry summer we had is A.certainly due to global warming B.likely due to global warming C.perhaps due to global warming D.unrelated to global warming

Phys 150 Lecture 2210 i>clicker question The very hot and dry summer we had is A.certainly due to global warming B.likely due to global warming C.perhaps due to global warming D.unrelated to global warming “Climate change” - more extreme heat events

Phys 150 Lecture 2211 i>clicker question The IPCC claims that most of the global warming since 1950 is very likely due to A.natural solar cycles B.volcanic activity C.human-caused greenhouse gases D.All of the above E.None of the above

Phys 150 Lecture 2212 i>clicker question The IPCC claims that most of the global warming since 1950 is very likely due to A.natural solar cycles – cooling B.volcanic activity - cooling C.human-caused greenhouse gases D.All of the above E.None of the above

Phys 150 Lecture 2213

Phys 150 Lecture 2214 i>clicker question The earth emits radiation into space primarily as A.visible light B.near infrared radiation C.mid infrared radiation D.ultraviolet radiation

Phys 150 Lecture 2215 i>clicker question The earth emits radiation into space primarily as A.visible light B.near infrared radiation C.mid infrared radiation D.ultraviolet radiation IR camera

Phys 150 Lecture 2216 i>clicker question The most important greenhouse gas is A.water vapor B.carbon dioxide C.methane D.nitrous oxide

Phys 150 Lecture 2217 i>clicker question The most important greenhouse gas is A.water vapor B.carbon dioxide C.methane D.nitrous oxide

Phys 150 Lecture 2218

Phys 150 Lecture 2119 i>clicker question During the last ice age, the Earth was colder by about A.1 F B.5 F C.10 F D.15 F

Phys 150 Lecture 2120 i>clicker question During the last ice age, the Earth was colder by about A.1 F B.5 F C.10 F D.15 F

Phys 150 Lecture 2221

Phys 150 Lecture 2222

Phys 150 Lecture 2123 i>clicker question The greenhouse effect warms the Earth by about A.1 F B.2 F C.20 F D.60 F Phys 150 Lecture 2223

Phys 150 Lecture 2124 i>clicker question The greenhouse effect warms the Earth by about A.1 F B.2 F C.20 F D.60 F Phys 150 Lecture 2224

Phys 150 Lecture 2225