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Neogene charcoal from Atlantic ocean cores. (A) Niger delta off West Africa (redrawn from Morley and Richards, 1993) (B) off the Namibian coast, south–west Africa (redrawn from Hoetzel et al., 2013). The reduction in fire in the Namibian core is attributed to increasing aridity. Values are relativized to the maximum record of the charcoal proxy.
