Think of the baggage / luggage conveyer systems at airports, one blocked piece of lugguage affects & backs up the entire conveyer system, which offsets an even balance,
like our
oceans, from this iron
fertilization!
Like other plants, plankton uses the greenhouse gas carbon dioxide for photosynthesis; thus, theoretically,
fertilization could have caused the
ocean to take larger amounts of CO2 from the air, and entomb it in the
ocean.