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Exam SCR topic 1 question 14 discussion

Actual exam question from GARP's SCR
Question #: 14
Topic #: 1
[All SCR Questions]

In preparation for an upcoming global climate conference, organizers develop climate science training materials for business executives.
How should the training material compare anthropogenic and natural climate changes?

  • A. Human-caused warming is occurring much faster than natural warming after the last ice age.
  • B. Human-induced warming currently exhibits a nonlinear relationship with global CO2 levels, whereas natural warming shows a linear relationship.
  • C. Human activities slowed water vapor feedback, whereas natural climate changes do not alter water vapor balance.
  • D. Human activities caused temperature changes greater than any previous natural temperature changes.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by goodforme at March 5, 2023, 2:53 a.m.

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goodforme
Highly Voted 1 year, 8 months ago
Selected Answer: A
For example, the warming over the past century (approximately 1°C in about a century) is around 16 times faster than the average rate of warming coming out of the last ice age (roughly 6°C in 10,000 years corresponds to an average warming of 0.06°C/ century).
upvoted 7 times
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linaSCR
Most Recent 7 months ago
Selected Answer: A
D is wrong about natural warming which has been definitely higher in the past than human caused warming
upvoted 1 times
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MatMat2023
1 year, 1 month ago
The answers are poorly phrased. None of them is correct. On fig. 1.3b p. 6 of the curriculum we can see that the temperature changes periodically and the change between min and max can be up to 10 degrees. They would need to specify a reference point for the temperature change.
upvoted 1 times
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SHO_MD_2023
1 year, 1 month ago
D is the correct answer, the book's emphasis is comparing pre & post industrial period, not the ice age.
upvoted 2 times
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Gs2410
1 year, 1 month ago
Selected Answer: D
A is incorrect as there is no concept of natural warming in my opinion. Nor we have discussed natural warming in the scr book. option D seems to be correct that human activities is causing more changes to temperature than natural temp changes.
upvoted 1 times
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sbrudersohn
1 year, 7 months ago
Selected Answer: D
The key is indeed the "since ice age" statement.
upvoted 2 times
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Riskr
1 year, 7 months ago
D is correct. The key is in the statement 'since ice age'. Human related warming is proven to be only since 20th century.
upvoted 2 times
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SCR23
1 year, 8 months ago
Selected Answer A not D: Global average temperature difference between an ice age and an interglacial is 6°C.
upvoted 3 times
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A (35%)
C (25%)
B (20%)
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