18 Oct Measured air temperatures over the last several decades may have been cooler than expected due to
Flannery Ch. 16. Measured air temperatures over the last several decades may have been cooler than expected due to
Group of answer choicesa.
a.atmospheric aerosols that are reflecting incoming solar radiation
b. lower ozone concentrations in the stratosphere that are causing cooling
c. greater frequency of forest fires
d. all of the above
e. most of the above
2.Flannery Ch. 17. How much of a reduction in carbon emissions is required to stabilize Earth’s climate?
Group of answer choicesa.
a.20%
b. 40%
c. 55%
d. 70%
3. Flannery Ch. 18. Which species will benefit from global warming?
Group of answer choicesa.
a. poison ivy
b. polar bears
c. parasites that cause malaria
d. kudzu
4.Flannery Ch. 19. Species typically adjust to climate change by migrating. Why is migration more of a problem for flora and fauna today?
Group of answer choicesa. human modified landscapes make it impossible for many species to migrate
b. climate change is happening too quickly for the flora and fauna to migrate
c. flora and fauna are slow to react to current changes in climate
d. all of the above
5. Flannery Ch. 20. Which deep sea creature was not discussed by Flannery in ‘Boiling the Abyss?’
Group of answer choicesa. megamouth shark
b. giant squid
c. angler fishes
d. gulpers
6. Flannery Ch. 21. Which of the pack of jokers is least likely to occur this century?
Group of answer choicesa. release of methane clathrates
b. shutting down the gulf stream
c. collapse of the Amazon rain forest
d. shutting down the Antarctic circumpolar current
7. When the walker circulation slows down, what happens?
Group of answer choicesa. La Niña event
b. El Niño event
c. NAO event
d. PDO event
8. A very strong SST (sea surface temperature) gradient from east to west in the tropical Pacific is indicative of …
Group of answer choicesa.
a. La Niña event
b. El Niño event
c. NAO event
d. PDO event
9. A Magic Gate is most likely associated with
Group of answer choicesa.
a. La Niña event
b. El Niño event
c. a sustained change in the PDO phase
d. a sustained change in the NAO phase
a and d
b and c
10. How will global warming impact oscillations in the climate system
Group of answer choicesa.
a.oscillations will increase
b. oscillations will decrease
c. it is not clear how oscillations will change with climate warming
Homework #6
1. What is an El Niño? What is a La Niña? Make sure to discuss the Walker Circulation and the Southern Oscillation. (2 points)
2. How do scientists forecast and track an El Niño or a La Niña? (2 points)
3. Did NOAA scientists correctly predict the 2016 El Niño? What did they get wrong and Why? (2 points)
4. What are oscillations in the climate system? Describe the climate oscillations discussed in this article. (2 points)
5. What are the key take away points regarding the climate system and future climate change? (2 points)
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