Light pollution in Hawaii

Light pollution is the presence of unwanted artificial light that brightens the night sky. Improperly shielded lights are the source of many of the issues regarding the light pollution in Hawai'i.^[1] Urban centers in the cities are often so bathed in light that over a hundred kilometers from the city's edge, the light pollution resulting from the glow is present.^[2] Fabio Falchi is quoted as stating that “light pollution is one of the most pervasive forms of environmental alteration” due to its destructive nature in both un- and protected areas such as national parks.^[3] Dark night skies are an important natural, cultural, scientific, educational, and economic resource for Hawai‘i.^[4]

One of the major cultural importance of the night sky is its use as a guide for Polynesians who first travelled to the islands, allowing tourists and native residents to connect with their history.^[5]  Light pollution may also affect the cultural celebration of Makahiki – the start of the Hawaiian New Year – which relies on the movement of the stars.^[6]