The current atmospheric concentration of carbon dioxide on Earth is at its highest in over a million years.

Name: The current atmospheric concentration of carbon dioxide on Earth is at its highest in over a million years.
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According to scientific studies, the current atmospheric concentration of carbon dioxide is the highest in at least 800,000 years. Some studies suggest it may be even higher than any time in the past million years.

The Current Atmospheric Concentration of Carbon Dioxide on Earth Is