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Unformatted text preview: 6. W.F. Ruddiman suggests that CO 2 will eventually decrease. What reasons does he give for this? 7. Describe the potential influence of the suns activity on solar radiation and its correlation with global temperature over the last 1000 years. 8. The data that were used to develop global temperatures over the last 1000 years (hockey stick) have been challenged. What was the primary rationale for this challenge? 9. If the hockey stick diagram were true, what evidence could you present to substantiate this claim? 10. How do scientists determine the future global climate?...
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- Spring '08