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. 2022 May 5;13:2459. doi: 10.1038/s41467-022-30099-9

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Fig. 1 — a map of countries classified according to their percentage of settlements (building footprints) with no associated satellite-derived nighttime radiance for urban and rural regions combined. b African and Asian countries with population exceeding 50 million ranked according to percentage of urban unlit settlements. c African and Asian countries with population exceeding 50 million ranked according to percentage of rural unlit settlements.