can you help me with these questions: 1) Which of the following scenarios will s
ID: 50303 • Letter: C
Question
can you help me with these questions:
1) Which of the following scenarios will stop global temperatures from rising above a 1°C increase by 2100?
Developed countries stop growth immediately, undeveloped remain constant, keep current rates of deforestation, no reforestation
All three countries stop growth, no countries reduce rates, keep current rates of deforestation, no reforestation.
All three countries stop growth, reduce rates, and ban deforestation.
None of the above
2)
What is the estimated increase in global temperature from the most optimistic model possible? Try optimizing everything to decrease carbon as much as the model allows.
5.0°
1.25°
0.5°
3.0°
3)
Why do the temperature and impacts of CO2 continue to increase in the model after countries stop their CO2 growth?
Negative feedback like an increase in primary productivity and the ocean absorbing more CO2.
Countries cheat and actually do not reduce their CO2 growth.
Positive feedback from other things like ice melting and CO2 released from permafrost.
We can't tell because models are unreliable.
4)
Which of these actions produce the greatest effect on the climate?
No countries stop growth or reduce, deforestation continues, but trees are planted at the maximum rate.
Developed countries immediately stop growth and reduce 10%. Developing countries do nothing.
Developing countries immediately stop growth and reduce 10%. Developed countries do nothing.
No countries stop growth or reduce, but deforestation stops.
thank you
Developed countries stop growth immediately, undeveloped remain constant, keep current rates of deforestation, no reforestation
All three countries stop growth, no countries reduce rates, keep current rates of deforestation, no reforestation.
All three countries stop growth, reduce rates, and ban deforestation.
None of the above
2)
What is the estimated increase in global temperature from the most optimistic model possible? Try optimizing everything to decrease carbon as much as the model allows.
5.0°
1.25°
0.5°
3.0°
3)
Why do the temperature and impacts of CO2 continue to increase in the model after countries stop their CO2 growth?
Negative feedback like an increase in primary productivity and the ocean absorbing more CO2.
Countries cheat and actually do not reduce their CO2 growth.
Positive feedback from other things like ice melting and CO2 released from permafrost.
We can't tell because models are unreliable.
4)
Which of these actions produce the greatest effect on the climate?
No countries stop growth or reduce, deforestation continues, but trees are planted at the maximum rate.
Developed countries immediately stop growth and reduce 10%. Developing countries do nothing.
Developing countries immediately stop growth and reduce 10%. Developed countries do nothing.
No countries stop growth or reduce, but deforestation stops.
thank you
Explanation / Answer
Answer:
1)All three countries stop growth, reduce rates, and ban deforestation.
Deforestation lead to high acculmulation of the carbondioxide, as tree abosrb carbondioxide during photosynthesis.
2)1.25°
The optimistic model possiblerange of 1.1 to 2.9 °C
3)Positive feedback from other things like ice melting and CO2 released from permafrost.
Due to metling of the ice, the warm water release more carbondioxide than in frozen condition.
4)No countries stop growth or reduce, deforestation continues, but trees are planted at the maximum rate.
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