The UK government consulted on lowering the consumer firework noise cap from 120dB to 110dB. The Center for Wild Animal Welfare (CWAW) says that's barely a start: it wants 90dB, a limit New Zealand adopted in 2008. The arithmetic is striking. Decibels are logarithmic. Each 10dB reduction halves perceived loudness but, crucially, shrinks the area over which a firework exceeds the disturbance threshold by a factor of ten. Go from 120dB to 110dB and you cut the disturbed zone to one-tenth. Go to 90dB and you cut it to one-thousandth of the original — or about one-hundredth of the government's proposed level. The wildlife evidence is not speculative. On New Year's Day 2025, more than 1,000 birds were found dead near a hiking trail in Bulgaria, roughly one kilometre from a fireworks site. Panicked birds flew into trees and each other. The RSPCA cites disrupted migration, elevated stress hormones, and debris hazards. CWAW director Richard Parr notes that a single loud firework's noise can penetrate up to 10km — an area of roughly 300 square kilometres. That is not a neighbourhood disturbance; it is a landscape-scale acoustic event. The British Fireworks Association's response follows a familiar playbook: acknowledge the concern, question the evidence threshold, and warn of unintended consequences — specifically, that a strict limit would push consumers toward illegal fireworks. This is the standard incumbent argument against regulation: if you make our product safer, people will just buy a worse version elsewhere. It may contain a grain of truth, but it also conveniently positions any meaningful noise reduction as impractical. The government's own consultation flagged a technical objection: that a 90dB limit is difficult to define precisely in legislation because of measurement variability in noise testing. This is a real engineering problem, but New Zealand appears to have managed it since 2008 without the regulatory framework collapsing. The question is whether the UK government sees the measurement challenge as a genuine obstacle or a convenient excuse for a weaker standard. Two parliamentary petitions gathered more than 180,000 signatures each, suggesting significant public appetite for action. The consultation also considered expanding the list of fireworks banned from general sale and — in a characteristically British detail — scrapping the age limit on Christmas crackers. The political signal is clear: there is legislative momentum, but the fireworks industry is lobbying hard to keep the reduction modest. The CWAW's core argument is structurally sound: because decibels are logarithmic, the difference between a 110dB and 90dB limit is not a matter of degree — it is a difference in kind. A 110dB cap still permits fireworks that disturb wildlife across an area roughly 100 times larger than those allowed under a 90dB cap. The government's proposed compromise lands far closer to the status quo than to meaningful wildlife protection. What emerges is a classic regulatory negotiation where the incumbent industry has anchored the debate around its preferred number (110dB), while the welfare case rests on physics the public may not intuitively grasp. The logarithmic scale is the story. If policymakers and voters understood that 110dB versus 90dB means a 100-fold difference in disturbed area, the conversation would look very different.
