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 Chriswaterguy rated 5 months ago- From the page: "At no time in at least the past 10 million years has the atmospheric concentration of CO2 exceeded the present value... methane levels also showed a clear increase for the first time in a decade."
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1 Reviews
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- Chriswaterguy rated 5 months ago
- From the page: "At no time in at least the past 10 million years has the atmospheric concentration of CO2 exceeded the present value... methane levels also showed a clear increase for the first time in a decade."
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