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EarthTalk

Are Environmental Factors to Blame for Autism?

Autism affects one in every 150 children born today in the U.S., a more than threefold increase from ten years ago. A variety of studies try to explain why

Dear EarthTalk: What's going on with all the cases of autism cropping up and no one seems to know why? It stands to reason it must be something (or some things) environmental, yet every study allegedly turns up no conclusion? What are the possible causes? -- Jessica W., Austin, TX

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