By 2023, 730 million people are expected to be undernourished, and agriculture, responsible for one-third of human-caused emissions, faces pressure to reduce its environmental impact. Experts recommend shifting to aquaculture, which has a smaller environmental footprint and provides essential nutrients. However, aquaculture requires significant investment to prevent overfishing and adapt to climate change. Governments see its potential, but there is a gap in research and development. Initiatives like those by WorldFish demonstrate that investing in aquaculture can combat malnutrition and promote health, especially in vulnerable populations, and scaling up these efforts could boost seafood productivity and reduce CO2 emissions.