Fabio Falchi

Twenty years ago, light pollution could be considered only a problem for astronomers. But fundamentally, life has evolved over millions of years with half the time dark and half the time light, and we have now enveloped our planet in a luminous fog of light. Light pollution has become a real environmental problem on a global scale.
A starry sky is something that touches your soul. Our civilization’s religion, philosophy, science, art and literature all have roots with our views of the heavens, and we are now losing this with consequences we cannot fully know. What happens when we cannot be inspired by the night sky?

Map of light pollution’s visual impact on the night sky

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3 Responses to Fabio Falchi

  1. shinichi says:

    New Map Shows the Dark Side of Artificial Light at Night

    More than a third of humanity cannot see the Milky Way due to light pollution, and a new wave of energy-efficient lighting could make the problem much worse

    by Lee Billings


  2. shinichi says:

    The new world atlas of artificial night sky brightness

    by Fabio Falchi et al.

    Science Advances (10 Jun 2016)


    Artificial lights raise night sky luminance, creating the most visible effect of light pollution—artificial skyglow. Despite the increasing interest among scientists in fields such as ecology, astronomy, health care, and land-use planning, light pollution lacks a current quantification of its magnitude on a global scale. To overcome this, we present the world atlas of artificial sky luminance, computed with our light pollution propagation software using new high-resolution satellite data and new precision sky brightness measurements. This atlas shows that more than 80% of the world and more than 99% of the U.S. and European populations live under light-polluted skies. The Milky Way is hidden from more than one-third of humanity, including 60% of Europeans and nearly 80% of North Americans. Moreover, 23% of the world’s land surfaces between 75°N and 60°S, 88% of Europe, and almost half of the United States experience light-polluted nights.

  3. shinichi says:

    「光害」人口の7割天の川見えず 都市化の日本、世界は3人に1人




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