The Ammonia Challenges (IMAGE) Tokyo Institute of Technology Caption Ammonia (NH3) is one of the most important industrial chemicals today, synthesized globally for use in fertilizers that then enable food production for approximately 70% of the world's population. Ammonia is currently obtained by reacting nitrogen (N2) from air with hydrogen (H2). This reaction requires high energy and is, therefore, powered by fossil fuels, contributing to over 3% of the global CO2 emissions. Credit Irasutoya, Michikazu Hara Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.