My Lords, I spoke in favour of my noble friend Lord Randall’s similar amendment in Committee. I confess to being a little disappointed that the Minister has not brought forward an amendment to deal with this. While I think that adopting too many targets that cannot be realised is not necessarily a good thing, to adopt a target for light pollution would at least show that the Government accept that it should be included together with other
types of pollution. As the noble Lord, Lord Carrington, has just pointed out, it is certainly true that it can be dealt with immediately—unlike the soil—by just switching off lights or reducing the number of lights.
There is strong evidence that light pollution has a detrimental effect on birds, bats and insects. I am certainly no lover of clothes moths, and would love to find a way of introducing light pollution to my cupboards to protect my clothes, which have been devastated during lockdown. However, the Government are committed to increasing biodiversity, which means a wide range of species, including insects. Studies from Germany are among the clearest, as my noble friend Lord Randall pointed out, in showing how serious a problem light pollution is for insects, frogs, bats, birds and hedgehogs, among other species.
As for homo sapiens, we have indeed evolved to rely on the cycle of night and day to govern our physiology. We all know how exposure to light at the wrong time affects our mental functions. Light pollution is not included within the existing priority areas in the Bill. My noble friend’s amendment would provide clarity on how the Government could reduce the impact of light pollution on nature and, especially, on people’s enjoyment of it.