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Nitrogen in the Environment
Article

Nitrogen in the Environment

Excess nitrogen causes problems in developed nations, but nitrogen-poor soils threaten food security elsewhere.

Science, 2019


Editorial Rating

8

Qualities

  • Scientific
  • Eye Opening
  • Hot Topic

Recommendation

Nitrogen in the environment is a two-edged sword. It’s vital for crop production, but overabundance in its reactive form can pollute water and air, and harm human and ecosystem health. In this article, UK ecologist and biogeochemist Carly J. Stevens offers an easy-to-understand summary of how humans have dramatically altered the distribution of nitrogen on Earth in ways that are detrimental to human health and the environment. She suggests how further actions can reduce reactive nitrogen’s harmful effects while boosting crop production in nitrogen-deficient regions.

Take-Aways

  • Humans have altered the balance of nitrogen, an abundant element critical for life, in the environment. 
  • Nitrogen is an overabundant pollutant in some places while it remains a deficient crop nutrient in others.
  • People are attempting to alleviate this problem, but success to date is mixed.

About the Author

Carly J. Stevens is a plant ecologist and soil biogeochemist at Lancaster University’s Lancaster Environment Centre in Lancaster, UK.