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