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# Although there has been great scientific debate for decades

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03 Jan 2012, 00:34
E cannot be the OA, as in this argument causes of global warming are not the prime point of discussion,the point is displacement of humans due to rising sea levels,that will occur if no technology would be in place to counteract the rising sea levels.
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07 Jan 2012, 22:23
A
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19 Jan 2012, 11:35
At first I chose C because if all the coastlines are affected the same then it will cause more people to be affected. However it doesn't need all coastlines to be affected the same to still get the result of affecting millions.

Answer choice A is correct because it strengthens the conclusion that there will be no way to thwart the rising sea levels. It defends the conclusion.
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22 Jan 2012, 10:38
Between A and B but clearly A cause there is no connections between people's awarenes and see level
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22 Jan 2012, 13:49
A - because even when the cause occur (rise in sea level) the result will not occur (major coastal cities will not be destroyed).

Not B - because 1. Green house gases may not be the only reason of global warming. 2. What if people who predicted that global temperature will rise by 8 degree, factored in the effects of human effort to reduce the emission of GHG..

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03 Jun 2012, 07:03
good prob. I narrowed down to A and C. Then marked C. Later realized, should be A beacause on negation A destroys the arg stronger than C does.
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04 Jun 2012, 01:15
sh00nya wrote:
Although there has been great scientific debate for decades over global warming, most scientists now agree that human activity is causing the Earth’s temperature to rise. Though predictions vary, many global warming experts believe that average global temperatures will rise between three and eight degrees Fahrenheit during the next century. Such an increase would cause an alarming rise in sea levels, displacing millions of people by destroying major population centers along the world’s coastlines.

Which of the following is an assumption in support of the argument’s conclusion?

A. New technological developments in the next century will not divert rising seas from the world’s coastal cities.
B. Individuals will not become more aware of the steps they can take to reduce the emission of greenhouse gases.

Negating B, which states that "Individuals will BECOME more aware of steps they can take to reduce the emission of greenhouse gases". Whether this statement RIGHT or WRONG will not affect toe the validity of the argument. Therefore. B is out. This is a kind of trap one.

Choice A is brighter, which states that "New technological developments in the next century will DIVERT rising seas from the world's coastal lines" => fight against the argument => this is the correct one.
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05 Jun 2012, 04:14
Assumptions should support the main conclusion (by strengthening or defending). Option A does this by ruling out a technological possibility that can weaken the argument.

In contrast, negating option A rips the argument to tatters, since there will be no flooding of coastline dwellings if the new technology were to come into effect.

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06 Jun 2012, 04:11
Passage talks about the effect of global warming on the coastlines. If the current rate of global warming continues, the sea levels will raise thereby forcing people to move inland.

A. New technological developments in the next century will not divert rising seas from the world’s coastal cities. - Correctly links the rising sea level and measure that would need to be taken by the humans to avoid it - Correct
B. Individuals will not become more aware of the steps they can take to reduce the emission of greenhouse gases. - No mention of emission of green house gases - Irrelevant
C. Rising sea levels similarly affect all coastal population centers. - Already mentioned in the passage - Incorrect
D. Some global warming experts predict a greater than eight degree Fahrenheit increase in global temperatures during the next century. - Irrelevant
E. Human activity is the sole cause of increasing global temperatures. - Sources of global warming is not relevent in the present context
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06 Jun 2012, 08:41
why not c? conclusion is the last sentence right?
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25 Jun 2012, 02:12
Straight A.

If new technologies to check rise of sea levels were developed, then the prediction/conclusion would fall flat.

Cheers,
Der alte Fritz.
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30 Sep 2013, 23:03
Hi there,

Can any expert pour in his/her thoughts on how to spot on conclusion in the stimulus like this.

I spotted conclusion to be "human activity is causing the Earth’s temperature to rise."

However, per the discussion and OA/OE, the conclusion is different.

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16 Nov 2014, 13:27
"Such an increase would cause an alarming rise in sea levels, displacing millions of people by destroying major population centers along the world’s coastlines" is the conclusion.

Only A attacks this conclusion [can also be proved by negation] . So A is the answer.

But why is this CR question under Sub-600 category while MGMAT classifies this as 700-800 category ?
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18 Jul 2016, 03:38
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Although there has been great scientific debate for decades   [#permalink] 18 Jul 2016, 03:38

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