However, there is much debate whether geoengineering should be implemented. Although there is evidence to support its benefits, none of this evidence was taken from a large-scale experiment. There are many different factors that influence the controversy surrounding geoengineering. Nonetheless, due to the proven benefits of iron fertilisation, it is being seriously considered by many experts in the field. Iron fertilisation has been shown to boost …show more content…
This argument is used to oppose the assertion that they have been greatly reduced over the last century. These studies, taking place around 2000, found up to a four percent increase in phytoplankton, especially in coastal areas (Siegel).
Another argument that is frequently made when discussing iron fertilisation is that of interference and potential complete disruption of ecosystems. This could easily violate the existing environmental laws surrounding the subject of iron fertilisation in general (Parthasarathy). By fertilizing iron-deficient areas of oceans, humans would voluntarily change an ecosystem. This sudden change could favour certain species and therefore cause a species imbalance that is the cause of extinction of several