Balancing the nitrogen cycle (IMAGE) Tsinghua University Press Caption Human activity has forced an imbalance of the nitrogen cycle, resulting in an abundance of harmful nitrogen products circulating through atmospheric, marine and land ecosystems. Electrocatalysis may offer the solution and balance the nitrogen cycle, if researchers can answer critical research questions. Credit Nano Research Energy, Tsinghua University Press Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original 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.