Introduction to Artificial Lighting

Artificial lighting has revolutionized the way we live. Its development enabled humans to extend activities beyond daylight hours, impacting productivity, leisure, and social structures.

Excessive artificial light exposure, especially blue light, can disrupt our circadian rhythms. This misalignment can lead to sleep disorders, depression, obesity, and even chronic diseases.

Artificial lighting affects ecosystems by confusing animal navigation, altering predator-prey relations, and disrupting plant cycles. The impact on nocturnal wildlife and insect populations can be profound.

Artificial lighting accounts for a significant portion of global energy consumption. This contributes to carbon emissions, climate change, and resource depletion, necessitating energy-efficient lighting solutions.

Contrary to popular belief, more lighting doesn't always mean less crime. Studies show that improved visibility may aid criminals. Effective lighting design is crucial for safety.

Skyglow from widespread artificial lighting obscures our view of the stars, affecting both amateur and professional astronomy. It also symbolizes the extensive human alteration of the natural night environment.

Solutions include using dimmer, motion-activated lights, warmer colors that mimic sunset, and smart lighting systems that adapt to natural light levels, reducing unnecessary light pollution and energy waste.