First World Atlas of the Artificial Night-Sky Brightness.

• http://arxiv.org/abs/astroph/0108052 (MNRAS)

• Cinzano, Falchi and Elvidge.

• Radiance calibrated, HR DMSP + modeling of light propagation in the atmosphere.

• DOE population database.

• 99% US pop. Under polluted skies.

• 2/3 US pop/20% world – lost Milky Way.

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