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The Republican committee chairman pressuring government scientists over what he's termed a "politically correct" global warming study decided to not subpoena scientists' emails Tuesday.

Rep. Lamar Smith, R-Texas, has issued subpoenas to the National Oceanic and Atmospheric Administration seeking communications related to the release of the study this year. While previous subpoenas included scientists who worked on the project, Smith said in a letter to Commerce Secretary Penny Pritzker that he was willing to limit the subpoena to non-scientific personnel.

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