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I’m here because A. Easy way to satisfy science requirement B. Concerned about climate change C....
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Transcript of I’m here because A. Easy way to satisfy science requirement B. Concerned about climate change C....
I’m here because
A. Easy way to satisfy science requirementB. Concerned about climate changeC. I’m going to get rich trading energyD. Debunk the professorE. Other / Stupid question
If the frequency is high, the wavelength is
A.HighB.LowC.LongD.Short
The frequency of long-wavelength light is
A.LowB.HighC.LongD.Short
The units of are
A.cmB.1/cmC.secondsD.1/seconds
The units of are
A.cmB.1/cmC.secondsD.1/seconds
Which is a correct calculationof frequency?
A. (cm/cycle) * c (cm/sec)B. (cm/cycle) * 1/c (sec/cm)C. 1/ (cycles/cm) * c (cm/sec)D. 1/ (cycles/cm) * 1/c (sec/cm)
My opinion about climate change
A. Scared witlessB. Inclined to be concernedC. I don’t know enough to have a strong opinionD. Inclined to think things will turn out OK on their ownE. I think it’s probably bunk
Which of the following is a lousy blackbody?
A. Water VaporB. Liquid WaterC.SnowD. Ice
Which of the following is has a high albedo?
A. Water VaporB. Liquid WaterC.SnowD. Ice
L ( 1-albedo ) / 4 = T4
Which of the following climate forcings could berepresented in this model?
A. Trees B. Clouds C. SunspotsD. Greenhouse gases E. Rabbits
A piano with strings missing is an analogy for
A. Something with high albedoB. A lousy blackbodyC.The energy balance of the Earth
A sink with water flowing through is an analogy for
A. Something with high albedoB. A blackbodyC.Energy balance of the Earth
Ultraviolet Catastrophe was a clue to
A. The greenhouse effectB. Chunky energy and ghostly electronsC.Sunlight variation over the sunspot cycle
Which factors determine whether a gas is a blackbody?
A. The electron orbital energy levelsB. The vibrational frequency of the bondsC. The electric field generated by vibrationD. Its concentration
Which gas would you suspect of being a greenhouse gas?
A. Freon C Cl2 F2
B. Krypton Kr (kills Superman)C. Iodine I2 (brown color)
Which of these is a pretty good blackbody?
A. Atmospheric CO2
B. Atmospheric O2
C. A cloud
Which of these is not a blackbody?
A. Atmospheric CO2
B. Atmospheric O2
C. A cloud
Which of these is a lousy blackbody?
A. Atmospheric CO2
B. Atmospheric O2
C. A cloud
Do you think the world is
A. Warming due to humansB. Warming, but not due to humansC.Not warming at all
Would you support or oppose an increase in petrol taxes to
reduce global warming
A.SupportB.Oppose
Would you support or oppose an increase in airline fares to
reduce global warming
A.SupportB.Oppose
Would you support or oppose an increase in taxes to
subsidize clean energy
A.SupportB.Oppose
We compared the pane of glass to a piece of cucumber in the drain of a sink. CO2 in the
air would be like
A. A grape (smaller than cucumber) B. A porous hairball in the drain C. Obstruction of one drain out of manyD. Turning up the faucet
Which is a more powerful greenhouse gas,
per molecule
A. CO2
B. CH4
C. H2O D. O2
Which is a more powerful greenhouse gas,
overall
A. CO2
B. CH4
C. H2OD. O2
A liter of Freon is equivalent to how much gasoline, in terms of greenhouse forcing
A. A literB. A gallonC. A barrel D. A ton
What can absorb IR in the atmospheric window?
A. CO2
B. CH4
C. Freons D. CloudsE. Nothing
Why are trace gases like CH4 and Freons such powerful greenhouse gases?
A. They have more absorption bandsB. Their absorption “bites” are shallowC.Their absorption “bites” are wideD.Their absorption “bites” are strong
An airplane compresses ambient upper-atmosphere air to 1 atmosphere for the comfort of its passengers. If the is not heated or chilled,
will the cabin temperature be
A. Warmer than the ground temperatureB. Cooler than the ground temperatureC. The same as the ground temperature
Which assumptions from the layer model did we not challenge today?
A. The atmosphere is a blackbodyB. Radiation is the only way to carry heatC. The Earth is all the same temperatureD. The energy input is constant in time and
uniform in space.
An “averaged” model for climate will be biased because
A. It neglects heat transportB. Nonlinear effectsC. It doesn’t have the coriolis effect
The seasons are caused by
A. The distance from the Earth to the sunB. The length of dayC. The angle of the Earth’ rotation to the sun
Water spirals down the drain in the opposite direction in the Southern Hemisphere
A. I want to believeB. I don’t buy it
Which involves a negative feedback
A. Supply and demand sets the priceof beans
B. Speculation and the housing price bubble
“… anyway, water vapor is a stronger greenhouse gas than CO2, so why worry
about CO2?
A. Yep, you’re right, let’s forget about global warmingand go home.
B. No it isn’t. CO2 is stronger.C. But water vapor can’t change, because its concentration
is set by rainfall, not by people with their lawn sprinklers (a negative feedback)
D. But you get more water vapor in a warmer atmosphere, amplifying the warming from CO2 (a positive feedback).
A runaway greenhouse effect on Earth
A. Could never possibly happen because it would rain first
B. Doesn’t happen today because the high latitudes act as cooling fins
C. Could not happen because the oceans would run out of water
D. Would be no big deal
The weathering thermostat is
A. A positive feedbackB. A negative feedback
I-Clickers
A. I think these are useful and helpfulB. They are a waste of valuable lecture timeC. Anyway I didn’t bring my I-clicker to class today
I-Clickers
A. I preferred paying $35 for my own I-clickerB. I prefer now borrowing it for free
Mountain uplift
A. Accelerates chemical weathering, thereby warmingthe climate
B. Accelerates weathering, cooling the climateC. Impedes weathering, warming the climateD. Impedes weathering, cooling the climate
The weathering thermostat on Venus is broken because
A. No degassingB. No weatheringC.No carbonD.No oxygenE. No water
The weathering thermostat on Mars is broken because
A. No degassingB. No weatheringC.No carbonD.No oxygenE. No water
Will determine the long-term future of climate
A. CoalB. OilC.Gas
Releases the most CO2 per Watt
A. CoalB. OilC.Gas
Used for transportation
A. CoalB. OilC.Gas
Used primarily for electricity
A. CoalB. OilC.Gas
Responsible for most CO2 emissions
A. TransportationB. IndustryC.ResidentialD.CommercialE. They’re all about the same
“Bad” Ozone
A. StratosphereB. Troposphere
The impact of a new source of CH4 to the atmosphere
A. The concentration in the air would rise to a new plateau.
B. The concentration in the air would keep rising until the source stopped.
The concentration of methane in the air today is
A. 10% higher than naturalB. Twice as high as naturalC.10 times higher than natural
The concentration of methane in the air today is
A. Rising rapidlyB. FallingC.Remaining steady
The natural carbon cycle is
A. AmplifyingB. Moderating
human-caused CO2 rise
Plants grow
A. BetterB. WorseC.No differently
in higher CO2 air
The fossil fuel CO2 that isn’t in the atmosphere is going
A. Mostly into the land surfaceB. Mostly into the oceanC.About half in each
The ingredient of seawater that CO2 reacts with is
A. H2CO3
B. HCO3-
C.CO32-
As CO2 dissolves in seawater, the buffer capacity becomes
A. WeakerB. StrongerC.Unchanged
Approximately how has the Earth’s average surface temperature changed
since 1950
A. 1 °C colderB. About the sameC.1 °C warmerD.3 °C warmerE. 5 °C warmer
Volcanic eruptions
A. WarmB. Cool
the surface of the Earth
The urban heat island effect
A. An urban legendB. Real but insignificant to the global averageC. Significantly contributes to global warming
Global warming so far
A. Has yet to be detectedB. Is real but negligibleC. Is already a disaster
Raise Earth’s temperature 1 °C. Would you get a bigger change
in IR energy flux to space
A. withB. without
positive feedbacks such as thewater vapor feedback?
Which scenario restores the energy balance fastest,
A. withB. without
positive feedbacks such as thewater vapor feedback?
Which ultimately gets warmer?
A. withB. without
positive feedbacks such as thewater vapor feedback?
Which would you consider a reasonable “danger limit” temperature change?
A. 1 °CB. 2 °CC.3 °CD.4 °CE. 5 °C
What kind of offsets shall we buy?
A. Renewable energyB. Energy efficiencyC.ReforestationD.BasketE. General Support