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480 points riffraff | 4 comments | | HN request time: 0.648s | source
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SwtCyber ◴[] No.44461788[source]
If deep water is now rising and releasing centuries of stored CO2, we're talking about a major shift in Earth's climate plumbing. Also wild that this only became visible thanks to a novel satellite processor
replies(2): >>44462526 #>>44465377 #
1. geysersam ◴[] No.44462526[source]
Why would the deep water have more dissolved CO2 than the surface water?
replies(3): >>44462552 #>>44464485 #>>44464706 #
2. bo0tzz ◴[] No.44462552[source]
The high pressure at depth allows it to dissolve more gas.
3. justonceokay ◴[] No.44464485[source]
Exactly the same reason you coke can out-gasses when you open it
4. pfdietz ◴[] No.44464706[source]
The Biological Pump. Organic matter created at the surface (by photoplankton and by consumers) falls into the deep ocean, where other biological processes oxidize it back to CO2.

https://en.wikipedia.org/wiki/Biological_pump