Topic: Earth and Space
New with Topic: Earth and Space
ZAMP posted a blog entry
Scientists Report Last Time Carbon Dioxide Levels Were This High Was 15 Million Years Ago
You would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA...
You would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA...
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