Dark Skies

Jim Shannon Excerpts

Monday 14th December 2020 Commons Chamber

[Andrew Griffith (Arundel and South Downs) (Con)]

It is good to see Members from across the country here this evening, representing their own dark sky places and reserves. It is an immense privilege to represent in this House Arundel and South Downs, with its rivers, castles, downlands, woods, vineyards and, yes, its dark skies at night. Much of the constituency lies within the South Downs national park, which, among its many virtues, shares something with only a handful of places on earth: since 2016, it has officially been an international dark sky reserve, as recognised by the International Dark-Sky Association. On a clear night, the Milky Way can clearly be seen from locations such as Bignor hill, which is one of the darkest spots in the park. For literally millions of people in the overdeveloped south-east, this is their last window out to the galaxy, as the cataracts of light pollution gradually obscures their vision.

I co-chair the all-party parliamentary group for dark skies with my noble Friend Lord Rees of Ludlow, the Astronomer Royal. A contemporary of Stephen Hawking at Cambridge, he has spent over 50 years contributing to our understanding of the cosmos, but what if Lord Rees had never been inspired to pursue this career path? Would he ever have dreamed of contributing to our understanding of the universe had an orange skyglow in rural Shropshire obscured his vision as he looked upward to the sky? Together, he and I founded the group in the hope that future generations may still be able to see the stars and the Milky Way—features that generations of our ancestors have looked up to—which is already impossible in many parts of the country. It is an experience that gives a unique sense of perspective about our place in the universe.

Sadly, light pollution is growing exponentially in its geographic coverage and population reach. CPRE’s recent annual star count found that 61% of UK citizens live in areas with severe light pollution, meaning that they could count fewer than 10 stars in the Orion constellation. That was a 4% increase in light pollution on the previous year. The case for controlling light pollution is not just for the benefit of astronomers, just as it is not only ornithologists who would miss songbirds if they disappeared from our gardens. It also has health, educational, environmental and economic benefits.

[Jim Shannon (Strangford) (DUP)]

I congratulate the hon. Gentleman on bringing the debate forward. He might not be aware that I represent a mixed rural and urban constituency. I am very blessed to live in the countryside, with fresh air in every breath, wildlife aplenty and lovely dark nights to sleep through. I am very supportive of his drive to ensure that the Government take this issue seriously. Does he agree that the mental health benefits of a good night’s sleep are well documented, and that dark skies can therefore play a very beneficial role?

[Andrew Griffith]

I thank the hon. Gentleman for his wise intervention. Indeed, mental health, like so many aspects of health, is affected by sleep deprivation caused by light exposure at the wrong time.

In 2018, Nature magazine reported that

“light at night is exerting pervasive, long-term stress on ecosystems, from coasts to farmland to urban waterways, many of which are already suffering from other, more well-known forms of pollution.”

It stated that a UK study sequentially over 13 years found that

“artificial lighting was linked with trees bursting their buds more than a week earlier—a magnitude similar to that predicted for 2 °C of global warming.”

Light pollution is a huge waste of energy too. Lighting accounts for 5% of global carbon emissions—that is more than aviation and shipping combined. Within that category, street lighting is the single biggest contributor.

Finally, our dark skies are increasingly an economic activity on which many livelihoods depend. Like many of our national parks, the South Downs runs an annual festival attracting thousands of visitors, led by the excellent dark skies officer, Dan Oakley, who helped me research for today’s debate. Dark skies tourism is one of the fastest growing parts of the outdoor tourism sector, with memorable opportunities to sleep and dine under the stars offered by businesses such as Woodfire Camping in Graffham in my constituency.