Future fish emissions: Insights from modeling foresight scenarios of regional fish supply and demand
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WorldFish
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A post-model analysis was used to estimate the future GHG emissions associated with aquatic foods across
the different regions and subregions under this study. In direct comparison to terrestrial meats, capture
fisheries and aquaculture production exhibit relatively low GHG emissions, signifying their distinct role
in reducing food system emissions while sustainably fighting malnourishment. Nevertheless, growing
production under the High scenario in South Asia is projected to result in substantial GHG emissions in the
region by 2050. Our results depict aquaculture as the dominant source of emissions by 2035, as those from
capture fisheries are expected to plateau. Technological progress and green investments show potential
for the sustainable intensification of aquaculture by reducing emissions, increasing output, and adapting
to climate impacts. Notable low-emission interventions include implementing co-cultures in aquaponics
and optimizing feed and feeding methods, as well as incorporating seaweed farming into aquaculture.
Combined rice and fish production in regions with high rates of rice consumption and nutrient deficiencies
could benefit human and planetary health by reducing emissions and increasing food production.
Palabras clave
greenhouse gas emissions, fish, fish demand, fish supply