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Ancient Air Bubbles Trapped in Antarctic Ice Point to Cause of Oxygen Decline

Glacial erosion likely caused atmospheric oxygen levels to dip over past 800,000 years. An unknown culprit has been removing oxygen from our atmosphere for at…

The post Ancient Air Bubbles Trapped in Antarctic Ice Point to Cause of Oxygen Decline appeared first on SciTechDaily.

Original Article: scitechdaily.com

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