Sequestering carbon dioxide in deep open ocean by applying fertilizer comprising an iron chelator

摘要

A method of sequestering carbon dioxide in a deep ocean comprises: (1) testing an area of the surface of the ocean in order to confirm that at least a first nutrient is missing to a significant extent from the area and to identify the first missing nutrient; (2) applying a first fertilizer which comprises an iron chelate to fertilize the area with an appropriate amount of iron chelate whereby carbon dioxide is sequestered; and (3) measuring the amount of sequestered carbon dioxide that results from the fertilization of the area. Preferably the fertilizer is applied in pulses to limit zooplankton and fish growth or in a spiral pattern and the iron chelate is selected from lignin or lignin acid sulfonate.