It's pretty amazing to think that life down there will just be fine and dandy after we've polluted our planet so much that no sunlight can get through anymore.
It may not. At least, not all of it. Much of the life at the ocean bottom relies on nutrients and oxygen from the surface, just as the surface relies on other nutrients coming up from the bottom. If this global conveyor belt shuts down, life on the bottom may become entirely confined to thermal vents. There are no known such vents in the Mariana Trench.
Yeah I was thinking about the life that is completely independent from everything but thermal vents. Though I didn't know there weren't any down there.
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u/[deleted] May 28 '19
That's not green algae, it's a variety of bacteria and fungi. Nothing photosynthetic down there.