Question to the Department for Environment, Food and Rural Affairs:

To ask His Majesty's Government what recent assessment they have made of the impact of light pollution on wildlife and people.

Following publication of the Royal Commission on Environmental Pollution’s report, ‘Artificial light in the environment’ in 2009, Defra has supported assessments of impacts of artificial light on insects and on other wildlife such as bats. These are published on our science website.

Defra has also funded or co-funded national and international assessments of the drivers of change on insects and wider biodiversity such as the global IPBES Assessment Report on Pollinators, Pollination and Food Production (2016), which notes that the effect of light on nocturnal insects may be growing and identifies the need for further study.

The National Planning Policy Framework sets out how the possible ecological impacts of artificial light should be considered in the planning system. It makes clear that policies and decisions should limit the impact of light pollution on local amenity, dark landscapes and nature conservation, including where there may be impacts on wildlife and ecosystems. Defra has contributed to associated guidance published by the Ministry of Housing, Communities and Local Government.

The Government recognises that artificial light offers valuable benefits for safety and amenity. Defra works closely with colleagues across Government whose policy areas affect the use of artificial light.

The Government has put in place a range of measures to ensure that light pollution is effectively managed through the statutory nuisance regime. Under the Environmental Protection Act local authorities have a duty to investigate complaints about light emitted from premises which could constitute a nuisance or be harmful to health and have powers to take action where there is a problem.