Fig. 4.

Scenario D: Assessing mitigation methods for the best opportunity to reduce emissions of nitrous oxide. The reduction in emissions of N₂0 from English grasslands resulting from a mitigation strategy, presented with (a) histograms, (b) shaded arrays, where the intensity of colour indicates the density of the underlying PDF, and (c) boxplots, where the green lines show the median values, the black boxes depicting the lower and upper quartiles and the dotted lines show the extent of the 95% confidence intervals. The solid red line indicates no reduction in emissions. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.).