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You are here: Home / Archives for Science / Environment

Artificial Lighting at Night in Estuaries—Implications from Individuals to Ecosystems

November 21, 2018 Filed Under: Environment

Artificial lighting at night (ALAN) alters natural patterns of light and darkness by introducing light that varies in intensity and spectral composition during typically dark periods (Gaston et al. 2013). Use of, and technological advances in, electric lighting have rapidly expanded since the incandescent lightbulbs of the early 1900s; ALAN now generates levels of intensity visible in satellite imagery of the Earth’s surface at night. Life has evolved under dynamic environmental conditions, but changes to the daily and seasonal light regimes associated with ALAN present a truly novel ecological stressor.

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Nature, extent and ecological implications of night‐time light from road vehicles

April 2, 2018 Filed Under: Environment

The erosion of night‐time by the introduction of artificial lighting constitutes a profound pressure on the natural environment. It has altered what had for millennia been reliable signals from natural light cycles used for regulating a host of biological processes, with impacts ranging from changes in gene expression to ecosystem processes.

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Making Lighting Healthier

January 18, 2018 Filed Under: Environment

Biologically benign forms of energy efficient lighting are needed. I call on physicists, engineers, medical experts, biologists and designers to develop them.

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The Switch to Outdoor LED Lighting Has Completely Backfired

November 22, 2017 Filed Under: Environment, International Press

The use of LEDs has resulted in a “rebound” effect whereby many jurisdictions have opted to use even more light owing to the associated energy savings.

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