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Comment on Give us your craziest ocean facts. 🦑

Ocean acidification occurs because the ocean serves as a carbon sink. Excess carbon dioxide in the atmosphere forms weak carbonic acid in ocean water. The ocean has historically been slightly basic, and as it inches towards a neutral pH, it makes it impossible for things like oysters to form their shells.

One big problem is that it’s one of the biggest carbon sinks. It’s keeping that greenhouse gas out of the atmosphere. However - as you might notice if you leave a can of Coke out on a hot day - the solubility of gases in liquids decreases when it’s hotter. The world heats up because of greenhouse gasses, less greenhouse gasses can be stored in the ocean and re-enter the atmosphere, which heats the world up more…

Then we also have the lovely “ice albedo” positive feedback loop - dark ocean water absorbs more of the suns radiation, sea ice reflects more of it. Sea ice melts as earth heats up, exposing dark ocean which absorbs more heat and melts more ice….

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chiliedogg@lemmy.world ⁨1⁩ ⁨week⁩ ago
Well at least there’s not a fuckton of methane hydrates on the ocean floor that are now releasing a greenhouse gas 30 times more potent than CO2 refrom the ocean floor as the water gets warmer. And that isn’t a self-feeding loop that means it’s probably too late to save ourselves now.

Because that would be bad.

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- andros_rex@lemmy.world ⁨1⁩ ⁨week⁩ ago
  Methane at least breaks down faster than CO2. Heavier, so stronger effects, but at least the CH4 methane breaks down after a decade or so instead of centuries.
  
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whoisearth@lemmy.ca ⁨1⁩ ⁨week⁩ ago
Tl;Dr

We fucked yo

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- andros_rex@lemmy.world ⁨1⁩ ⁨week⁩ ago
  Pretty much. We set off several positive feedback loops and punctured the equilibrium, and nature’s going to have to find a new one. Whether or not that can support life as we know it know is up in the air.
  
  (I didn’t even mention phytoplankton die offs - a lot of the oxygen produced on earth is from photosynthesis happening in the ocean - not from terrestrial plants. So you also have less of a carbon sink in that process as well.)
  
  When I was a child, long road trips would leave the front grill of our car caked with bugs. When I’d hunt for dandelions with my siblings, leaning close to the ground revealed a world just teeming with activity.
  
  Now - where are the bugs? Especially with how difficult it is to identify insect species, we’ve probably lost hundreds of thousands of bugs that were never named or studied. How critical were those bugs to their ecosystems?
  
  It’s difficult to motivate people to care about species of phytoplankton or ants though. Even the “save the bees” thing got twisted into a celebration of non-indigenous species that were brought in for agricultural purposes (wasps are critical for pollination, but not as cute as honey bees I guess.) The more you study ecology, the more you realize how complicated and interlocking it is, the more you realize that most human beings cannot be brought to care without substantial changes to our education system.
  
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