Posted: December 3rd, 2013

Has solar radiation changed in the 20th century? Is this change in response to increased CO2? How do we know?

Paper instructions:

I need a 5-page research paper regarding the following questions: Has solar radiation changed in the 20th century? Is this change in response to increased CO2? How do we know? It must be at a college level and have at least 3 reliable sources.

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