Solved cryptogram
One vast loop of current carries water around the world, and a full circuit takes centuries.
Earth Science Facts, sourced to NOAA.
Solve it yourself
This fact is a cryptogram here: 75 letters over 18 different ones, graded medium.
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What it means
It is driven by density rather than by wind. Cold, salty water in the North Atlantic sinks, creeps along the sea floor toward the southern ocean and the Pacific, rises again, and returns near the surface. A parcel of water can spend a thousand years in transit. The loop moves an enormous amount of heat toward the poles, which is why the climate of northwest Europe is nothing like that of Labrador at the same latitude.
The claim comes from NOAA.
- SourceNOAA
- CollectionEarth Science Facts
- Difficultymedium
- Length75 letters, 18 of them different
Nearby in the collection
The facts either side of this one.
About as hard as this one
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