Exam SCR topic 1 question 40 discussion

Actual exam question from GARP's SCR

Question #: 40
Topic #: 1

A public policy think tank releases a report on global decarbonization pathways. The report describes the relative contribution of each GHG to modern climate change and recommends focusing global efforts on CO2 reduction.
Why would the think tank make this recommendation?

A. CO2 atmospheric concentrations have increased by approximately 1 part per billion.
B. CO2 atmospheric concentrations have increased by approximately 100 parts per billion.
C. CO2 is responsible for approximately a 2.25 w/m2 increase in radiative forcing.
D. CO2 is responsible for approximately a 1.00 w/m2 increase in radiative forcing.

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Suggested Answer: C 🗳️

by qingyang111000 at April 20, 2024, 6:37 a.m.

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0302x

1 month, 4 weeks ago

Selected Answer: D

C cannot be right since CO2 is the basis for calculating GWP

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qingyang111000

8 months, 1 week ago

C or D since “1.5.2 Other Greenhouse Gases and Aerosols The next most important greenhouse gas is methane (CH4), which has increased from 0.8 ppm before the industrial revolution to about 1.9 ppm in 2020. This might seem like a small increase, particularly compared to the 130-ppm increase in carbon dioxide, but methane is a far more powerful greenhouse gas on a permolecule basis—each kilogram of methane traps as much heat as 28 kilograms of carbon dioxide.”

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Exam SCR topic 1 question 40 discussion

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0302x

qingyang111000

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