EESC 235 New Jersey City University Global Climate Change Questions Paper the questions are in the instructions, watch the video and answer https://www.you

EESC 235 New Jersey City University Global Climate Change Questions Paper the questions are in the instructions, watch the video and answer https://www.youtube.com/watch?v=gAwJhf-QATI EESC235: Global Climate Change
Name
_____________
Answer the following questions as you watch the video “Six Degrees could Change the
World”.
1:36:07
https://www.bing.com/videos/search?q=six+degrees+could+change+the+world+video&qpvt=six+degre
es+could+change+the+world+video&FORM=VDRE
How do we measure global temperatures?
What would Earth be like if temperatures were 6˚C colder?
Where does CO2 come from?
What is the current level of CO2 in the atmosphere? (this video is old, currently 400 ppm)
1˚C warmer:
What would happen to the Arctic?
Where would flood?
Where would new hurricanes appear?
Where would new deserts appear?
How does this compare with 6000 years ago?
What would happen in England?
Why do we have to stabilize CO2 now?
1
How much of the world’s energy comes from fossil fuels?
2
2˚C warmer
What would happen to the Arctic and Greenland?
What would happen to insects? How would this affect their habitat?
What would happen to Tuvalu?
What would happen to marine ecosystems?
What has happened to the Great Barrier Reef recently? Why?
What happens when there is too much CO2 dissolved in the oceans?
How long has the Greenland ice sheet been present?
What will happen if it melts?
How long would it take to melt?
Why are the glaciers moving faster and faster?
Which cities would flood if Greenland melted?
Why is 2˚C considered a tipping point?
3
3˚C warmer
What would happen to the Arctic?
What would happen to the Alps?
What would happen to the Mediterranean?
What happened in Europe in 2003, and what does this tell us about a warmer world?
What happened to the trees and plants during this heatwave?
What might happen to the Amazon Rainforest with a 3˚C temperature rise?
What happened to the Amazon during 2005?
If the Amazon Rainforest dies, how would this affect atmospheric CO2?
How would El Niño conditions change in a climate 3˚C warmer?
What would happen to hurricanes?
4˚C warmer
What would happen to oceans and coastlines?
What would happen to glaciers?
What would happen to northern Canada?
4
What would happen to the Ganges River? Why?
What could happen to sea level and how would this affect NYC?
What would add to the flooding problem?
How often might the current 100 year storm occur at 4˚C warmer?
What type of protection might be constructed?
5˚C warmer – very speculative
What would happen to tropical areas?
What would happen to ice pack/ aquifers?
What might happen to human civilization?
6˚ warmer – even more speculative
What happened during 6˚C warmings at other times in Earth History?
What can we do to reduce emissions?
How soon do we have to reduce emissions?
How might the biosphere remove CO2?
5
DID YOU WATCH LECTURES 7 & 8 ????
ASSIGNMENT 6
Global Climate Change
Instructor: Dr. Amaach
NAME:
__________________________________________________________________________
Answer the following questions (1-10): 50 Points
1. Use the chart to help you answer the following questions:
a. Explain what the line is labeled “Solar spectrum outside atmosphere” is showing:
b. Explain what the line labeled “solar spectrum at sea level is showing:
c. Why there is a gap between the solar spectrum outside the atmosphere and the solar
spectrum at sea level?
2. Why does Earth mainly radiate lower energy at longer wavelengths than the Sun? Explain
3. The planet Mercury is located only about 36 million miles from the Sun and has an average
surface temperature of about 332°F. The planet Venus is located about 67 million miles from
the Sun (almost twice as far) but has a higher average surface temperature of about 854°F.
Using the fact that Mercury has no real atmosphere to speak of and Venus has a very thick
atmosphere made up mainly of carbon dioxide. Explain why Venus is hotter than Mercury?
You would not survive a visit to the surface of the planet – you couldn’t breathe the air, you
would be crushed on by the enormous weight of the atmosphere, and you would burn up in
surface temperatures high enough to melt lead.
4. What are the distinguishing characteristics of the troposphere, stratosphere,
mesosphere, and thermosphere?
5. Venus and Mars orbit the Sun at average distance of 0.72 and 1.52 AU, respectively. What
is the solar flux at each planet based on the following?
– Inverse-square Law
Average distance from earth to Sun, which is 149,600,000 km, defined as AU
– The solar flux at earth’s orbit, is 1366 W/m2
Show all calculations.
–
6. The Temperature of a planet is determined by a balance between the energy received from
the Sun and the energy radiated back out to space. The Earth’s effective temperature, the
temperature the Earth should have without an atmosphere, can be calculated knowing the
solar input and the planet’s Aledo.
a. Calculate the Earth’s effective temperature (Te) in Kelvins and °C based on the
following:
Energy in = Energy out
(4π R2 earth ) (σ Te 4 ) = π R2earth S(1-A)
S = 1366 W/m2
σ = 5.67 x 10-8 W/m2/K-4
Albedo (A) = 0.3
Show all calculations.
b. When Mt. Pinatubo erupted in 1991 in the Philippine, the volcanic dust and aerosols
were injected into the stratosphere were quickly mixed around the globe. The
increase in atmospheric aerosols increased the Earth’s reflectivity (albedo) from 0.30
to 0.31. What impact would this have on the Earth’s effective temperature (Te)?
c. Some Geophysicists predict a big volcanic eruption in the next 10 years and that
will reverse global warming. What do you say?
7. What is ozone, and why it is both beneficial and harmful to life on earth?
8. Why has the concentration of the carbon dioxide in the atmosphere been increasing over
the last century?
9. Why does the troposphere contain much more mass than the stratosphere, despite the fact
that the troposphere is thinner layer than the stratosphere? explain
10. Make up your own question and answer it

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