What does it mean that only 5% of the ocean floor is “mapped” and why is that number so small?

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I often see this statistic referenced, but I don’t understand exactly what it means. And why only 5 percent? Is it because of the ocean’s unfathomably massive size? The cost of mapping? It’s not worth mapping? All of the above?

In: Earth Science

4 Answers

Anonymous 0 Comments

As far as I know, depth and the insane degree of pressure is the cause. We have submersibles that do the thing, but they’re super expensive. Just testing out new and improved ones can be extra expensive, especially if they need replacement or repair. Then you probably gotta hire people to deal with it all, then taxes. It’s just a big undertaking and our current technology for mapping the ocean floor is limited.

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