LEGEND

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Human Population Reaches a Milestone
Sometime in late 2011, according to estimates, Earth’s human population surpassed the seven billion mark. Despite a general decline in birth rates, world population increases by some 83 million people each year. This growth will continue for decades to come, challenging our ability to feed ourselves and to sustain the natural capital on which human societies depend. The maps presented here explore a few population patterns: how our billions are distributed across the face of the Earth; regional differences in rates of population increase; and broad disparities in life expectancy.
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