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. 2017 Feb 22;3(2):e1601198. doi: 10.1126/sciadv.1601198

Fig. 1. Global distribution of cumulative environmental impacts.

Fig. 1

Index of cumulative impact of equally weighted changes in SST, CHL (a proxy to primary productivity), and ocean currents. Colors represent a dimensionless index of global impact (Cumulative Impact Index) ranging from 0 (no change) to 1 (maximum change), providing a measure of spatial heterogeneity in the magnitude of environmental changes and highlighting those marine areas that have undergone the largest changes in their environmental conditions.