Even though the warming trend of the past 100+ years cannot be explained solely by natural processes, models tell us that natural processes were the dominant influence on this warming trend.

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Question
The long-term warming trend of global temperatures over the
past ~100+ years cannot be explained solely by natural processes
that force climate. Which one of the following statements
indicates what the temperature trend likely would have been - in
particular over the past 50 years - if natural processes alone
were forcing climate?
Fairly similar to what we have already experienced but with a few years
that were warmer and a few that would have been cooler than we have
actually experienced.
A slight warming effect on global climate but less than what we have
actually experienced
A slight cooling effect on global climate over the past 50 years.
No difference because natural processes that influence climate operate
on much longer time-scales than 50 years and thus can't effect climate
of the recent past.
Even though the warming trend of the past 100+ years cannot be
explained solely by natural processes, models tell us that natural
processes were the dominant influence on this warming trend.
Transcribed Image Text:The long-term warming trend of global temperatures over the past ~100+ years cannot be explained solely by natural processes that force climate. Which one of the following statements indicates what the temperature trend likely would have been - in particular over the past 50 years - if natural processes alone were forcing climate? Fairly similar to what we have already experienced but with a few years that were warmer and a few that would have been cooler than we have actually experienced. A slight warming effect on global climate but less than what we have actually experienced A slight cooling effect on global climate over the past 50 years. No difference because natural processes that influence climate operate on much longer time-scales than 50 years and thus can't effect climate of the recent past. Even though the warming trend of the past 100+ years cannot be explained solely by natural processes, models tell us that natural processes were the dominant influence on this warming trend.
Expert Solution
Step 1

The long term warming tend of global temperatures over the pass ~100years cannot be explain solely by natural processes that force climate. Warming could not be for one and only reasons. There are human and natural effects that causes the warming.

Naturally,Sun heats the earth constantly 342watts/m2. According to the earth's shape equator receives the most and on the pole it's less.Earth constantly receives 342 watts/m2 of energy by the sun. That’s the average, on the equator it’s more, on the poles it’s less.

From that, 234W are absorbed

67W →Atmosphere

168W→Surface

And reflect back into the space 107WOf those 342 watts, a total of 235 watts are absorbed, 67 watts by the atmosphere, 168 by the surface, and 77+30 = 107 watts are reflected back into space

 

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