ROSMARIN, A. (2004): In a fix: The precarious geopolitics of phosphorus. In: Down to Earth, 27-34. PDF
Both nitrogen and phosphorous are essential to life. Phosphorous is a scarce resource and is the focus of intense geopolitical interest. Nitrogen, on the other hand, is a resource in plenty. But indeed, the world today faces a nitrogen deluge. That is because a lot of it exists in the form of waste. Now, nitrogen-bearing waste goes not back to the land but into water. This issue of "Down to Earth" deals with the question, whether it is possible "not to be at war" with these two elements.