Extended Data Fig. 1: GHG costs of 74 UK breed-to-finish pig systems by label type excluding foregone sequestration.
From: Trade-offs in the externalities of pig production are not inevitable
GHG costs varied significantly among label types (Kruskal-Wallis: χ2 = 16.0, df=5, p < 0.01, n = 43), with Organic costs being significantly higher than RSPCA assured and Red tractor (post-hoc Dunn’s analysis p = 0.02 and p = 0.01 respectively). Letters above boxplots show the results from Dunn’s post-hoc tests, controlled for multiple comparisons using the Holm method, with different letters indicating significant differences between median values. Upper and lower hinges correspond to the first and third quartiles. Upper and lower whiskers extend to 1.5 times the interquartile range from upper and lower hinges respectively. The middle horizontal bar is the median.
