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

To ask Her Majesty's Government what estimate they have made of the amount of excess CO2 created as a result of light pollution.

The Government has not made an assessment specifically of the amount of excess CO2 created as a result of light pollution. Artificial light is a complex issue that falls across a number of central Government departments, the devolved administrations and, on a local level, local authorities and highways authorities. However, the Government is committed to cutting the UK's emissions to net zero by 2050 and has put a wide range of policies in place to achieve this.