Skip to main content

Noise pollution puts nature at risk

 "I just want a bit of peace and quiet!" Let's get away from all the hustle and bustle; the sound of endless traffic on the roads, of the trains on the railway, and the planes in the sky; the incessant drone; the noise. We live in a world of man-made noise; screeching, bellowing, on-and-on in an unmelodious cacophony.  This constant background noise has now become a significant health hazard.  

With average background levels of 60 decibels, those who live in cities are often exposed to noise over 85 decibels, enough to cause significant hearing loss over time.  It causes stress, high blood pressure, headache and loss of sleep and poor health and well-being.  


In nature, noise has content and significance.  From the roar of the lion, the laughing of a hyena,  communication is essential for life; as the warning of danger, for bonding as a group or a pair, finding a mate, or for establishing a position in a hierarchy - chattering works.  Staying in touch is vital to working as a group, and nature is in a constant dialogue. 

 Sperm Whales communicate over massive distances of several hundreds of miles and across oceans by producing loud 'clicks'.  At 235 dB,  the clicking can be louder than a rock concert (115 dB).  

Even humans can produce the most sophisticated sound, and with the spoken and written word, they develop a culture in the abstract,  and change through ideas.   Humans produce mood music,  but they also produce massive amounts of sound that has no significance in communication.  It is merely the collateral pollution form our industrial endeavour, or simply from 'enjoyment'.   For wildlife, this can be devastating.

Our noise pollution was in stark relief for its absence during the coronavirus lockdown.  It was a chance for nature to breathe, a deep breath, not simply of unpolluted air, but a rare moment of human silence. 

There was a time when we awoke to the sound of the dawn chorus - birdsong. Now we awake to the sound of an alarm, no longer guided by the sun, moon and stars, the night shift can take over from the day.  But this is not without consequence for the birds.  Our background noise can mask their communications and make it difficult for them to communicate.  It interrupts their breeding patterns.  It masks the complexity of their song, and poor reproductive success puts species in danger. 

Ray Noble is a chartered biologist and Fellow of the Royal Society of Biology.  He writes extensively on the nature of intention and agency in living systems.  


Comments

Popular posts from this blog

Ian Duncan-Smith says he wants to make those on benefits 'better people'!

By any account, the government's austerity strategy is utilitarian. It justifies its approach by the presumed potential ends. It's objective is to cut the deficit, but it has also adopted another objective which is specifically targeted. It seeks to drive people off benefits and 'back to work'.  The two together are toxic to the poorest in society. Those least able to cope are the most affected by the cuts in benefits and the loss of services. It is the coupling of these two strategic aims that make their policies ethically questionable. For, by combining the two, slashing the value of benefits to make budget savings while also changing the benefits system, the highest burden falls on a specific group, those dependent on benefits. For the greater good of the majority, a minority group, those on benefits, are being sacrificed; sacrificed on the altar of austerity. And they are being sacrificed in part so that others may be spared. Utilitarian ethics considers the ba...

Ethical considerations of a National DNA database.

Plans for a national DNA database   will be revealed by the Prime Minister this week. This is the same proposal the Tories and Liberal Democrats opposed when presented by the Blair government because they argued it posed  a threat to civil liberties. This time it is expected to offer an 'opt-out' clause for those who do not wish their data to be stored; exactly how this would operate isn't yet clear. But does it matter and does it really pose a threat to civil liberties? When it comes to biology and ethics we tend to have a distorted view of DNA and genetics. This is for two reasons. The first is that it is thought that our genome somehow represents the individual as a code that then gets translated. This is biologically speaking wrong. DNA is a template and part of the machinery for making proteins. It isn't a code in anything like the sense of being a 'blueprint' or 'book of life'.  Although these metaphors are used often they are just that, metapho...

In praise of social housing and the welfare state

I will declare an interest. I grew up in a one-parent family on a council estate. I occasionally attended my local comprehensive school. I say occasionally because for the most part I played truant. I spent much of my time skipping school but walking and reading on the local common. It had a windmill which I loved. It later had Wombles but that is another story. I contemplated life under the sun. Like many others, I left school at 15 with no qualifications. My penultimate school report said they  'could see no reason why public money should be wasted on the attempted education of this boy'. So I declare this interest of a privileged upbringing. Social housing kept a roof over our heads at a rent mum could (barely) afford; and oh how I recall the days  when she couldn't. She worked all hours to keep that roof over our heads. In those early days of Rock-and-Roll, Bill Haley and the Comets, Adam Faith, Billy Fury, Cliff Richard (yes I was/am a fan), the estate had three c...