Figure 2 (IMAGE)

Tohoku University

Figure 2

Caption

Spatial Variation in ERI for Iron, Copper, Nickel and Cobalt, and Lithium. Panels show (a) Iron, (b) Copper, (c) Nickel and cobalt, and (d) Lithium. ERI = Extinction Risk Index. Each grid cell represents approximately 100,000 km² (displayed in the Global Mercator projection) and is coloured using a bivariate legend that combines mean ERI (y-axis; intervals of 0.15) and mining area (x-axis; km², log10 scale). Blue tones indicate lower ERI, yellow-to-dark tones indicate higher ERI, and darker shades toward the right indicate larger mining area classes.

Credit

Cheng et al.

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