Critical Reasoning (CR) | Re: ­Earth scientist: Mount Kilimanjaro in Tanzania has lost 90 percent of

­Earth scientist: Mount Kilimanjaro in Tanzania has lost 90 percent of its ice cover over the past century. But this loss cannot be due to global warming. Recent data shows that temperatures of the air surrounding the mountain’s glaciers never rise above freezing, so the glaciers cannot be melting. The loss must be explained by sublimation, or direct evaporation of the ice, and by not enough snowfall to replenishit.

The argument works as follows.

It begins with backgroundinformation:

Mount Kilimanjaro in Tanzania has lost 90 percent of its ice cover over the pastcentury.

Then, comes the mainconclusion:

this loss cannot be due to globalwarming

Next comes factualevidence:

Recent data shows that temperatures of the air surrounding the mountain’s glaciers never rise abovefreezing

Finally, we have two intermediateconclusions:

[color=#0000ff] the glaciers cannot be melting

The loss must be explained by sublimation, or direct evaporation of the ice, and by not
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Statistics : Posted by MartyMurray • on 09 Mar 2024, 10:33 • Replies 1 • Views 113

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