When snow blankets the landscape, it may seem like life slows down. But beneath the surface, an entire world of activity is ...

The air over the Philadelphia region has high concentrations of toxic pollutants, according to new data from a spectrometer floating in outer space. Visualization maps released by NASA show hot spots ...

Nitrogen pollution is a serious concern for the agriculture industry. Agricultural fertilizers contain nitrogen, an essential nutrient for plant health. However, these fertilizers also produce ...

Nitrogen is an important component of the global environment, affecting agriculture, climate, human health, and ecosystems. The role of the nitrogen cycle has become more widely appreciated, yet Earth ...

Ancient cycad lineages that survived the extinction of the dinosaurs may have done so by relying on symbiotic bacteria in their roots to fix atmospheric nitrogen. The finding came from an effort to ...

After a comprehensive study of plants across the United States, researchers have arrived at the unexpected conclusion that plants able to fix atmospheric nitrogen are most diverse in arid regions of ...