@article{fdi:010088296,
  title = {{O}cean iron fertilization may amplify climate change pressures on marine animal biomass for limited climate benefit},
  author = {{T}agliabue, {A}. and {T}wining, {B}. {S}. and {B}arrier, {N}icolas and {M}aury, {O}livier and {B}erger, {M}. and {B}opp, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}limate change scenarios suggest that large-scale carbon dioxide removal ({CDR}) will be required to maintain global warming below 2 degrees {C}, leading to renewed attention on ocean iron fertilization ({OIF}). {P}revious {OIF} modelling has found that while carbon export increases, nutrient transport to lower latitude ecosystems declines, resulting in a modest impact on atmospheric {CO}2. {H}owever, the interaction of these {CDR} responses with ongoing climate change is unknown. {H}ere, we combine global ocean biogeochemistry and ecosystem models to show that, while stimulating carbon sequestration, {OIF} may amplify climate-induced declines in tropical ocean productivity and ecosystem biomass under a high-emission scenario, with very limited potential atmospheric {CO}2 drawdown. {T}he 'biogeochemical fingerprint' of climate change, that leads to depletion of upper ocean major nutrients due to upper ocean stratification, is reinforced by {OIF} due to greater major nutrient consumption. {O}ur simulations show that reductions in upper trophic level animal biomass in tropical regions due to climate change would be exacerbated by {OIF} within similar to 20 years, especially in coastal exclusive economic zones ({EEZ}s), with potential implications for fisheries that underpin the livelihoods and economies of coastal communities. {A}ny fertilization-based {CDR} should therefore consider its interaction with ongoing climate-driven changes and the ensuing ecosystem impacts in national {EEZ}s.},
  keywords = {biogeochemical cycles ; climate change ; marine carbon dioxide removal ; marine ecosystems ; ocean iron fertilization ; ocean net primary ; production},
  booktitle = {},
  journal = {{G}lobal {C}hange {B}iology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[11 ]},
  ISSN = {1354-1013},
  year = {2023},
  DOI = {10.1111/gcb.16854},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088296},
}