Mother Pelican
A Journal of Solidarity and Sustainability

Vol. 9, No. 1, January 2013
Luis T. Gutiérrez, Editor
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To Save Our Ecosystems, Stop Overloading Them

Doug Pibel and Madeline Ostrander

Originally published in Yes! Magazine, 19 November 2012
under a Creative Commons License
Reprinted with Permission

Left alone, natural systems keep nitrogen, carbon, and other key ingredients of life balanced.

Nitrogen is the most common element in the atmosphere. Plants can’t grow without it. Carbon is essential to life: 18 percent of a human body and 50 percent of a tree is carbon. Left alone, natural systems maintain cycles that keep these elements circulating where they’re needed and in the right amounts. But we’ve pulled nitrogen out of the air to feed plants and put carbon, from burning coal and oil, into the air. We’ve thrown natural cycles out of balance. Excess carbon is heating the planet. Excess nitrogen is poisoning the air and water. In order to have the clean water, healthy ecosystems, and stable climate we need to survive, we’ll have to stop overloading the systems.


(1) Humans capture N2 from the air and produce 131 million tonnes (144 million tons) of nitrogen fertilizer each year globally. This adds more nitrogen to the planet than ecosystems would use under natural conditions, busting the Earth's nitrogen budget.

(2) Excess nitrogen runs into surface and groundwater. There are now more than 95,000 square miles of dead zones in coastal waters, largely caused by nitrogen pollution.

(3) Both fossil-fuel burning and agriculture also send nitrogen pollution into the air—as N2O, another powerful greenhouse gas, and NO, a precursor to smog and acid rain.

(4) If we recycled waste (both animal manure and human waste) and used it as fertilizer, we could feed the world with the nitrogen nature produces. If we converted to renewable energy and organic agriculture, we could stop polluting the planet with excess nitrogen. Click here for more.

To preview the Winter 2013 issue of Yes! Magazine on "What Would Nature Do" click here
Doug Pibel and Madeline Ostrander wrote this article for What Would Nature Do?, the Winter 2013 issue of YES! Magazine. Doug is managing editor and Madeline is senior editor of YES!



Doug Pibel is managing editor and Madeline Ostrander is senior editor of YES! Magazine

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