House Energy and Commerce - Climate Change Assessment Methodologies - 193612-1-DVD - House Committee on Energy and Commerce. Joint Hearing with the Committee on Armed Services. Subcommittee on Oversight and Investigations. The Committee on Energy and Commerce Subcommittee on Oversight and Investigations held a hearing titled "Questions Surrounding the 'Hockey Stick' Temperature Studies: Implications for Climate Change Assessments." Witnesses testified about scientific research into global warming and climate change, the use of scientific environmental data by government agencies and organizations, and disputes among interested parties about the meaning of the data. Mr. Stephen McIntyre, of Toronto, Canada, was co-author of the article "Hockey Sticks, Principal Components, and Spurious Significance," in Geophysical Research Letters, 2005. Filmed by C-SPAN. Non-commercial use only. For more information, see