Historically, there have been four oceans: the Atlantic, Pacific, Indian, and Arctic. On Feb. 9, U.S. Secretary of the ...
When we look at Earth from space today, we see a pale blue dot—a planet dominated by vast oceans that shimmer under the sunlight. But what if our oceans weren't always blue? According to recent ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Alexandra A Phillips, University of California, Santa Barbara (THE CONVERSATION) As ...
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