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		adzp on July 27, 2010 \| parent \| context \| favorite \| on: Urban Air Pollutants Can Damage IQs before Baby's ... Why are people voting this up? This article makes no mention of a control group and many factors can contribute to low iq. I am basically echoing several comments made on the article itself because they are valid.

ars on July 27, 2010 [–]

Is it me, or has the quality of Scientific American gone down significantly in the last year?

This is not the first article with problems like this I've read there. Maybe it's just the blog postings?

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