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How Much Time Do We Have Left?

How Much Time Do We Have Left?. The Coal Wars -- the Fight of ALL Life. How Far Can We Go?. 20 Years ago NASA Scientist Dr. James Hansen testified before Congress that the Globe was warming and that people were the cause. Top scientist worked to calculate the CO 2. CO 2 Parts Per Million.

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Calling 202 224 3121 - PowerPoint PPT Presentation

How Much Time Do We Have Left?