A research team from the Hong Kong University of Science and Technology has created an AI model to calculate and decrease global ammonia emissions from agricultural systems. The model, which uses data from 1985 to 2022, can create personalized fertilizer management plans for various regions. The study suggests that optimized fertilizer management could reduce global ammonia emissions from the top three crops (wheat, rice, and corn) by up to 38%, with the greatest potential for reduction in Asia, followed by North America and Europe.