A new study reveals that the aerobic nitrogen cycle in the ocean may have occurred about 100 million years before oxygen began to significantly accumulate in the atmosphere, based on nitrogen isotope ...

Ozone pollution is a global environmental concern that not only threatens human health and crop production, but also worsens ...

This discovery led to the realization that a substantial part of the enormous nitrogen losses that are ... and must then flow back for the next cycle of hydrazine formation (Fig.

† Key Laboratory of Water and Sediment Sciences, Ministry of Education, Department of Environmental Engineering, Peking University, Beijing, 100871, China ‡ John and Willie Leone Department of Energy ...