2016-05-17 · people
A third of humanity cannot see the Milky Way
Artificial light at night washes out stars — and disrupts wildlife and sleep.
1 cell = 8.2 million people (0.1% of world population) · 1,000 cells
Context
Artificial light at night washes out stars — and disrupts wildlife and sleep.
Science Advances 2016: ~83% world population lives under light-polluted skies; ~33% cannot see Milky Way.
This grid fixes world population at 1,000 equal cells (0.1% of world population). Figures follow Science Advances — light pollution as summarized in the source line — rounded so cell counts sum to the chart.