Over the past four years, the Environmental Protection Agency has tightened restrictions on a host of pollutants and pollution sources, ranging from tougher tailpipe emissions standards for all ...

Nitrogen oxides, a group of gases from the burning of fossil fuels, is linked to a range of health effects. By Austyn Gaffney A rule proposed by the Environmental Protection Agency on Friday could ...

Fig.1 An integrated modeling framework evaluates how ambitious nitrogen interventions can reduce ammonia and nitrogen emissions, consequently improve air quality by lowering fine particulate matter ...

Nitrogen is an essential element for living organisms, needed to build DNA, proteins and chlorophyll. Although nitrogen makes up nearly 80% of the air we breathe, it’s availability to plants and ...

Fossil-fuel burning and widespread agricultural use of nitrogen fertilizer have led to a substantial worldwide increase in the amount of reactive nitrogen (Nr) — all forms of nitrogen except ...

An international team of researchers has found that nitrogen emissions from fertilizers and fossil fuels have a net cooling effect on the climate. But they warn increasing atmospheric nitrogen has ...

Climate change is not only warming the planet and disrupting rainfall, it is also quietly rewiring the way nitrogen moves through the world’s croplands, forests, and grasslands. This hidden shift in ...

An international research team combined multidisciplinary methods to evaluate how nitrogen interventions could improve air quality and reduce nitrogen deposition. Their study found that interventions, ...