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I have seen the argument (in Derrick Jensen) that whales migrate vertically, so the iron they distribute is somewhere else than originally, placing whales (if s

by a9h74j 5y ago

I have seen the argument (in Derrick Jensen) that whales migrate vertically, so the iron they distribute is somewhere else than originally, placing whales (if so) as a key factor in an iron circulation system.

ars 5y ago
But the iron is consumed on the surface, and the phytoplankton need it on the surface - if anything sending it to the depths of the sea seems counter productive.
- a9h74j 5y ago
  IIRC he claimed they feed deep and poop shallow.