Transport is a continuously growing area of the economy,
and one that has large environmental impacts.
Now, you may think that this
is an unimportant and - let’s face it – boring subject to blog about, however
tyres have been identified as a neglected ‘source of pollution’. Yes,
these rubber doughnuts pose a rather
serious ‘ecological threat’
throughout their lifecycle (Constantinescu,
2012).
Tyres are considered “an environmental nightmare” when they reach disposal age, at ‘risk of catching fire
or breaking down, leaching toxic chemicals and
heavy metals into soil structures and water tables’ (Norsa,
2015). However, a tyre’s
environmental impact varies throughout its transition from raw materials to
waste.
Tyre Fire in Jamaican Landfill Site |
First, I invite you to observe the pressing issue of
tropical forest clearance for rubber plantations which has captivated the
concern of many conservationists. Briggs (2015) outlines that the tyre industry
‘consumes 70% of all natural rubber grown’ and is largely to blame for drastic
land-use switches, causing negative impacts on soil and water, the significant
LOSS of tropical biodiversity and putting endangered species at a greater risk
of extinction.
Forest Conversion for Rubber Plantation in Northern Laos |
It is predicted that an additional 8.5 million hectares of rubber plantation will be required to meet
growing rubber demands by 2024.
That’s practically the size of Austria.
Yes, a space the size of a country will need to be cleared
and converted, a scary reality which I wholeheartedly disagree with.
However, aside from forest and biodiversity loss, the
largest environmental effect of the tyre occurs when it’s in use.
Now, tell me if I’m wrong, but
when thinking about the environmental impacts of cars, driving style isn’t
typically what springs to mind. However, a ‘driver's
driving style is the most important factor influencing the environmental impact
of tyres’ and generates the ‘largest
share of emissions’ (Constantinescu,
2012).
Shocked? Me too.
Studies have concluded that ‘the
most important part of tyre management and most effective means of reducing
environmental impact’ is the responsible
behaviour of drivers, the consumer, the national citizen, us (Constantinescu,
2012).
So how do we go about encouraging
wider society to adopt what Constantinescu
(2012) calls “economic driving”?
Well, as a society largely driven
by wealth and consumption, it makes sense that economic incentives are
deployed, right? Put simply by Treadfirst
(2014): ‘Care for your car and it
will save you money!”.
Advertisement to promote car-sharing scheme |
Simple tips which save you
money and are easy to follow are publicly advertised, leaving consumers with no
excuse:
- Travel lighter – declutter your car to reduce weight and drag
- Open your window – spare use of air conditioning
- Reduce your speed – rapid acceleration and sharp breaking wastes fuel
- Make new friends – share your commute and slash your costs
However, it is inherently
difficult to change behaviours and practices that are ingrained into societal
daily routines.
The future fate of effective tyre
management to relieve damage to the environment is ultimately left in the hands
of wider society and their willingness to change their driving habits.
So tell me, will you?
Hi Caitlin! I am amazed by the fact that an area as large as Australia would be needed for rubber plantations! I will definitely take into account the tips given to reduce the amount of tires ruined :) I was wondering, do you know to what extent tires can be recycled? In terms of re-use have you considered up-cycling? (check out the picture of tire-plant-pots! https://s-media-cache-ak0.pinimg.com/736x/5d/f8/f7/5df8f732a3b0ca4ea4efa7fdc6644e98.jpg )
ReplyDeleteLook forward to your next blog-post!
Hi Maria, I know that shocked me too! I know that tyres can be up-cycled - love the plant pots -and also the rubber can be made into sleeping mats, soft flooring like you find outside nursery schools etc. As for tyre recycling at home, it usually occurs when taking your car into a garage, they'll recycle old tyres for you. However old tyres cannot be remade into new tyres as their flexibility worsens and their drag increases due to over use and age so recycling doesn't detract from the need to produce new tyres. Thank you for your comment!
DeleteThanks for that Caitlin! I totally agree that it is hard to re-make tyres! But I am glad they are used in other ways!
DeleteReally interesting post, and as Maria said, quite shocking when you see those kind of statistics. Are there any viable alternatives to using rubber for tires in order to make them more environmentally friendly?
ReplyDeleteHi Ben, thank you for your comment!
DeleteThere are various ways that tyres are being made more sustainable such as design to decrease rolling resistance and thus fuel consumption. However in terms of their actual manufacturing and changing the raw material used check out this New York Times Post - http://www.nytimes.com/2010/06/20/automobiles/20TIRE.html?_r=0 . Basically, tyre manufacturers are testing out and implementing various alternative materials to replace black-carbon to decrease rolling resistance and friction - they've even tried using orange peel oil! Researchers are also attempting to revert production back to the renewable source of latex sap from rubber trees and away from adding crude oil. But, in terms of reducing the environmental disruption from deforestation for rubber plantations it's more tricky as rubber is required to make tyres. There's been talk about moving from the tropics for natural rubber - stopping deforestation of crucial tropical forests - and to desert shrubs with the potential to produce latex (check out this post > http://www.scientificamerican.com/article/alternative-source-of-tire-rubber-gains-traction/).
Hope this answers your question?
Thanks again Ben!