The Darkness Manifesto

*Winner of the Penn Libraries Book Prize in Sustainability* * Named a Best Book of the Year by Scientific American* This timely and captivating look at the hidden impact of light pollution is “rich in revelation and insight…lyrical” ( The Wall Street Journal ) and urges us to cherish natural darkness for the sake of the environment, our own well-being, and all life on earth. How much light is too much light? Satellite pictures show our planet as a brightly glowing orb, and in our era of constant