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Co2 Levels Fluctuating Annually Steadily Increasing Highest Recorded

Historic CO2 concentrations are determined by analyzing CO2 gas bubbles and oxygen isotopes in ice cores.

Historic CO2 concentrations are determined by analyzing CO2 gas bubbles and oxygen isotopes (for temperature) trapped in ice cores.

Front CO2 levels are
Back fluctuating annually, steadily increasing, at the highest ever recorded, will conform to N hemisphere patters

Tags: 4_3_carbon_cycling

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