The levels of carbon dioxide are at the highest that they have ever been in the history of the earth. True or false

asked May 28, 2018 204k views

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The levels of carbon dioxide are at the highest that they have ever been in the history of the earth.

True or false

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False, the levels of carbon dioxide was at its highest state when the humans didn't exist.

Shagberg answered Jun 2, 2018

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