Question:

What were the CO2 levels during the last ice age compared to what they are now?

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Please give me your resources.

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  1. watch the movie inconvenient truth with al gore 90 percent of all the info is accurate and he talks about the co2 levels watch it its really helpfull.


  2. Between 180 and 280 ppm.  Now it's 380 ppm.

    Source: Vostok ice core data.

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