Knappenberger, Paul C. "Chip"
Edward Crane - Global Warming - Latest National Climate Assessment Report
Chip Knappenberger - AM 970 - Climate Change Assesment
MichaelsKnappenberger-WaPo-climate
Paul C. Knappenberger and Patrick J. Michaels - Washington Post - Climate Change
Chip Knappenberger - Daily Caller - Climate Change
MichaelsKnappenberger-Heritage-ClimateChange
Chip Knappenberger - GlobalWarming - The Keystone XL Pipeline
Knappenberger, Michaels-Moral Liberal
Paul C. Knappenberger - National Review Online - Climate Change
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