Most of the earth is affected by light pollution. 80% of the world’s population live under skyglow and almost everyone in the UK cannot experience a natural night sky from where they live.
The evidence of the impacts of light pollution on species and ecosystems has grown and strengthened. Increased Artificial Light at Night, known as ALAN, is directly linked to measurable negative impacts on energy consumption, human health, and wildlife such as bats, birds, insects, reptiles, amphibians, mammals, and plants. Unnecessary artificial light increases financial costs and contributes to greenhouse emissions.
Light pollution should be treated with the same contempt with which we treat all other forms of pollution yet it has increased from a variety of sources, including residences, sports facilities, public infrastructure (such as lighting along motorways), retail buildings, and industrial activity.