There's been talk of dumping iron particles into the ocean to to spur phytoplankton growth [0]. [0]: https://www.scientificamerican.com/article/iron-dumping-oc

There's been talk of dumping iron particles into the ocean to to spur phytoplankton growth [0]. [0]: https://www.scientificamerican.com/article/iron-dumping-ocean-experiment-sparks-controversy/ https://www.scientificamerican.com/article/iron-dumping-ocea...