Nitrogen's Dark Side

Reactive nitrogen inputs as a result of human activity are known to have a range of far reaching concequences for the environment.  I feel that the best way to quickly introduce all of these impacts is visually, a long list of bullet points or boring chunk of text isn't very helpful in getting the basics across (that stuff will come later!).

Thankfully, Townsend and Howarth (2010) have done the job for me in an article for The Scientific American by producing the excellent diagram below.

  Fig. 1. 'Nitrogen's Dark Side' Townsend and Howarth (2010: 66)