摘要
Since the Industrial Revolution,the pursuit of lighting for humanity has gradually evolved into an out-of-control disaster of light pollution.Artificial light at night(ALAN)scatters the constituents of the atmosphere(such as gas molecules,aerosols,and clouds),causing the artificial glow to brighten the night sky during observations.1 The unrestrained expansion of urban lighting systems and the unrestrained flashing of commercial neon lights have led to an annual increase of 6%in the brightness of the night sky.Around the city,people can no longer see the Milky Way with the naked eye.This kind of light pollution not only obscures the starry sky but also disrupts the circadian rhythm that has formed in the ecosystem of Earth over millions of years;every year,millions of birds lose their way due to the strong light in cities and crash into tall buildings.The foraging and breeding behaviors of nocturnal animals have been severely disrupted,and biodiversity continues to decline.Human health itself is also threatened.Excessive night light can inhibit the secretion of melatonin and increase the risk of cancer and cardiovascular diseases.
基金
supported by Strategic Priority Research Program of the Chinese Academy of Sciences grant XDB0550100
by the Foundation of China Association for Science and Technology(CAST)under grants kpbwh-2023-3-03 and kpbwh-2024-2-08.
