Science
Sea ice kept oxygen from reaching deep ocean during last ice age – Phys.org
Extensive sea ice covered the world’s oceans during the last ice age, which prevented oxygen from penetrating into the deep ocean waters, complicating the relationship…

Extensive sea ice covered the world’s oceans during the last ice age, which prevented oxygen from penetrating into the deep ocean waters, complicating the relationship between oxygen and carbon, a new study has found.
“The sea ice is effectively like a closed window for the ocean,” said Andreas Schmittner, a climate scientist at Oregon State University and co-author on the paper. “The closed window keeps fresh air out; the sea ice acted as a barrier to keep oxygen from entering the ocean, like stale…
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