The lighting effect of solar lights at night

How does outdoor artificial light at night affect human health and behavior?

Outdoor artificial light at night (ALAN) affects human health and behavior. Outdoor ALAN significantly impacts sleep, which can lead to various health issues. Outdoor ALAN can cause undesirable behaviors. Such undesirable behaviors can have widespread and longer impacts on societies.

How does artificial nighttime light affect ecosystems?

The impacts of the flickering of artificial nighttime light on ecosystems are not understood. However, it is clear that this flickering is perceptible by a wide diversity of species ( Woo et al. 2009; Inger et al. 2014 ).

Why is artificial light at night important?

The invention of electric light has revolutionized daily life with dramatic changes to light conditions at night (Falchi et al., 2011). Artificial light at night (ALAN) has added great value to our lives, as fundamental human activities (e.g., transportation, work, leisure) can continue uninterrupted even at night.

How has artificial lighting changed the outdoor nighttime environment?

Artificial lighting has transformed the outdoor nighttime environment over large areas, modifying natural cycles of light in terms of timing, wavelength, and distribution.

What does exposure to artificial light at night affect?

Using a new database of published studies, we show that exposure to artificial light at night induces strong responses for physiological measures, daily activity patterns and life history traits.

Does artificial light affect plants at night?

Many natural or semi-natural habitats thus experience artificial light at night at levels congruent with those that cause physiological effects on plants.