Related topics: nitrogen

Nitrogen in the soil cleans the air

Eutrophication harms the environment in many ways. Unexpectedly, nitrogen fertilizer may also be positive for the environment. And even acidic soils, promoting the destruction of forests, can have a positive effect. Researchers ...

Scientists relate urban population to air pollution

(Phys.org) —Live in a large city like New York, London, Beijing or Mumbai, and you are likely exposed to more air pollution than people in smaller cities in surrounding areas. But exactly how a city's pollution relates ...

Importing food damages domestic environment

Trees falling as fragile forests become cropland is a visual shorthand for the environmental costs exporting countries pay to meet lucrative global demands for food. Yet a new study reveals a counterintuitive truth: Importing ...

Red spruce reviving in New England, but why?

In the 1970s, red spruce was the forest equivalent of a canary in the coal mine, signaling that acid rain was damaging forests and that some species, especially red spruce, were particularly sensitive to this human induced ...

Scientists discover that charcoal traps ammonia pollution

Cornell University scientists Rachel Hestrin and Johannes Lehmann, along with collaborators from Canada and Australia, have shown that charcoal can mop up large quantities of nitrogen from the air pollutant ammonia, resulting ...

How much does that fertilizer REALLY cost?

Humans have more than doubled the amount of reactive nitrogen in the environment since the Industrial Revolution, with adverse consequences that include air and water pollution, biodiversity loss, ozone depletion, water acidification ...

page 4 from 31