IRON SEEDING: THE SCIENCE.”The maximum possible result from iron fertilization, assuming the most favourable conditions and disregarding practical considerations, is 0.29W/m2 of globally averaged negative forcing, which is almost sufficient to reverse the warming effect of about 1/6 of current levels of anthropogenic CO2 emissions. It is notable, however, that the addition of silicic acid or choosing the proper location could, at least theoretically, eliminate and exceed all man-made CO2.””
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