Guest post by Alwin Hardenbol, Student Blog Contest Series
Let us start bleak. Each and every one of
us has an environmental impact on this planet. Some less, some more. To reduce
this impact, we need proper information and a desire to reduce it. While we can
find lots of information on the internet, many do not have the desire to look
for it. Not just for you as a reader, but also for me as the writer of this
article. There are people that see value in taking action to reduce their
impact and then there are people who argue that mere individuals are not going
to change anything on the levels that are required. In my opinion, both are
true. I can use the argument that if all humans on this planet think “my
actions don’t matter” then it is about time to cooperate and work together to
lessen our environmental impact. On the other
side, I can argue that corporations and governments should take more
responsibility. However, while they certainly have a
moral responsibility to improve their environmental considerations, they are a
representation of the desires of the public. The public who often vote with
their wallet in mind, choosing political parties who are more concerned with
the success of corporations than the environment. If we show a clearer desire
to reduce our individual environmental impacts, then they may take notice. However,
apart from trying to influence governments and large corporations, there is
really just a need for you and I to reduce our individual footprints, before we
reach a point of no return.
Coming back to the desire to change
personal behaviour, I will be clear about one thing; I would be a hypocrite if
I did not note that I also need to change my behaviour further still. I drive
my car too much sometimes; I still eat meat once or twice a week and so on. Nevertheless,
there are many things I do not do, perhaps have never even done in my life, and
there are also many changes I have made based on the information I have
gathered. I am not asking you to change everything today, but step by step. You
also do not have to force yourself to change a certain habit if it makes you too
uncomfortable. Us environmentalists often take a moral high ground and put
climate-change deniers to shame, but we cannot shame people into changing their
behaviour. We need to give them the information and a certain freedom to
choose. This should be within boundaries of course, as some issues require
rapid changes in order to avoid a species going extinct. A good example of this
is overfishing (think of the Vaquita in Mexico). Allowing criticism of oneself
is important here and that is a very difficult task. But once you allow
personal criticism then you are able to see the flaws in your environmental
impact and you can try your best to change.
There are many individual impacts that we
can consider, some more important than others. However, it is hard to weight
the impact of certain actions against each other. Below, I address four issues
that I think require further action by the public that we do not often focus on
as much as things like plastic pollution and climate change.
Responsible pet ownership with
a focus on cats
Pets are not native species that belong in
the wild. Because of irresponsible pet ownership, we have many non-native,
sometimes invasive species, threatening our native wildlife. There are also
many pets that are still under our care, but are left to roam outdoors and
disturb native wildlife. The biggest such issue is cats. It is an issue that we
need to resolve together. Fearing severe backlash from cat owners, the
government is unable to step in in many cases, and NGOs are often forced to stay
quiet about it for the same reason. However, the science is rather clear, despite
the lack of a Europe-wide study. There are studies from the UK, Poland, Sweden,
the US, Australia, and many islands across the globe that discuss this issue. Detailed
studies show cats are the number one cause of death in birds in the U.S. and
Canada (this ignores more indirect impacts such as habitat loss). Keep in mind
that this includes feral cats, which are highly prevalent in the U.S. With ‘kittycams’
in the U.S. placed on domestic cats,
the numbers of prey were measured at 2 prey items per 7 days per cat. Multiply
that by the millions of cats we own in Europe (13.7 million for Germany alone
in 2017 for example) it results in extremely high numbers of casualties, mainly
mammals, birds, reptiles and amphibians. Estimates from the UK show that 275
million prey items are taken every year. In addition, domestic cats in the US
are often kept indoors at all times, a stark contrast to what we do in Europe. In
Poland, where cats are largely kept outside as farm mousers, a recent study has
estimated that just cats at farmsteads could be responsible for the death of
583 million mammals and 135 million birds annually.
What can be done about
this? Keep in mind, I am only
considering cats that are in the care of an owner; defined as domestic cats. The best solution would
be to keep your cat indoors at all times and take your cat for walks on a
leash, like you would a dog. Alternatively, you could build an outdoor cat
enclosure if you want them to be able to enjoy the outdoors more consistently.
While I want to stress the importance of the best solution, if you as a
cat-owner refuse this solution, then there are some alternatives to consider
that are at least better for the native fauna. For one, you can keep your cat
indoors during the birds’ breeding season, especially when the chicks are
learning to fly as they are easily targeted. Secondly, you could keep your cat
inside at night (starting at dusk) as many mammals, reptiles and amphibians
scurry about at night. Finally, when you leave your cat to go outdoors attach a
bell or bib to their collar so that it might make a sound and scare away the animal
they are trying to kill.
Gardens
Beautiful gardens full of colour, with lots
of stone paving and tiles to walk on, devoid of weeds and pests, are lovely. But
how beautiful is this garden to native wildlife? Green spaces in urban areas
can house a considerable amount of biodiversity, although it is usually the
smaller critters, which go unnoticed. Private gardens form a large part of
these urban green spaces. If you treat your private garden well, a host of
biodiversity, like mammals, birds and amphibians may even visit. These days, we
like to include lots of tiles and stone pavement in our gardens. However, this removes
any potential for native wildlife to visit or live in that area. The solution? Allow
more green spaces in your garden. But what kind of green spaces should you
leave? It’s rather complex to garden in an ecologically sustainable way but an
easy thing to do is to think about what native plants you could include in your
garden. Collectively, we have introduced lots of non-native, invasive plant and
insect species in Europe. This is often a result of gardening and the desire to
have exotic, pretty looking flowers in our gardens. To avoid introducing more of
these species, or spread the distribution ranges of present ones further, it is
important to have mostly native species in our gardens. However, some
non-native plant species can still be beneficial to biodiversity. The benefit
of native plants in your garden is that native insects have adapted to these
plants and are much more likely to visit. It is most important to choose plants
that combined, flower for as long as possible, from spring to autumn. The Royal
Horticultural Society in the UK has made a nice list of many other actions,
large and small, that you can take to improve the biodiversity and ecological
value of your garden.
Certified products
For the average consumer the variety of
ecologically certified products can seem overwhelming. There are at least 237
different environment-focused certificates in Europe alone. Keeping track of
every certificate is impossible. Getting to know a few that are important to
you is a good start.
The range of ecologically certified
products is immense (from wood products to composted waste) but I’m just going
to focus on commonly used food/drink items like coffee, tea, chocolate, fruits
and seafood. All these products have a potentially large ecological footprint
and the certificates associated with these products are relatively well known. They
come from the Rainforest Alliance, MSC, UTZ, and Fairtrade, who aim to minimize
the ecological strain directly or indirectly, as is the Fairtrade certificate. Using
products with a specific certificate helps to build the brand of the
certificate and promotes new standards for the producers and retailers.
Certificates are not limited to seafood and
tropical areas. There are also specific certificates for locally produced goods
in Europe, for example, produce that is organically farmed (which receives the
EU organic logo). Moreover, there are ecological certificates for chemicals,
hygiene products, clothes, tourism services and so on. Just getting to know a
few of them at a time, does certainly make a difference. However, certificates
should not be regarded as flawless and controversies over them have often been
raised by ecologists.
Collecting wildflowers and herbs
I would also like to address an issue that
pertains to the over-collection of wildflowers and herbs. Two examples are the collection of Sideritis scardica for the production of
‘mountain tea’, and orchids of
different species from the Orchis
genus to make salep flour; this flour is used to mainly make a traditional beverage
but also desserts. I am half Greek, so I recognize how popular these drinks are
in Greece and surrounding countries.
However, they come at a cost to the environment, which many people are
unaware of or simply ignore. When drinking tea or salep, just like you are with
what you eat, try to be aware of where it comes from and what the potential
environmental cost is. These plants are collected in the wild illegally. The lack
of enforcement of these laws means it is up to us as individuals to stand up
against these practices. Since Sideritis
scardica is also cultivated, and synthetic alternatives to salep exist on
the market, there are easy solutions within our reach. It just requires an
active change in behaviour by us all.
I hope that this article gives you the
motivation to think about your own impact on the environment, and perhaps make
a few behavioural changes. While I mentioned just a few issues, there are sadly
many more, and we each have an effect on them.
REFERENCES
Issue
1 (Responsible pet ownership with a focus on cats):
Presentation by Pete Marra: https://www.allaboutbirds.org/cat-wars-effects-of-outdoor-cats-on-birds/
Podcast episodes on cats: (1) http://www.urbanwildlifecast.com/the-truth-about-cats-part-1/,
(2) http://www.urbanwildlifecast.com/the-truth-about-cats-part-2/
FAQ from the Cornell Lab of Ornithology in
the US: https://www.allaboutbirds.org/faq-outdoor-cats-and-their-effects-on-birds/
Study
from the US: https://www.nature.com/articles/ncomms2380
News
article on the same study: https://www.nytimes.com/2013/01/30/science/that-cuddly-kitty-of-yours-is-a-killer.html?_r=0
Kittycam project in the US: http://www.kittycams.uga.edu/
Kittycam study: http://www.kittycams.uga.edu/other/Loyd%20et%20al%202013.pdf
Effect of cats in the UK: (1) https://www.telegraph.co.uk/gardening/10319711/What-effect-do-cats-have-on-British-wildlife.html,
(2) https://www.rspb.org.uk/birds-and-wildlife/advice/gardening-for-wildlife/animal-deterrents/cats-and-garden-birds/are-cats-causing-bird-declines/
Effect of cats in Poland: https://www.sciencedirect.com/science/article/pii/S2351989418303196About the Author
Alwin Hardenbol is an Early Stage Researcher doing a PhD in forest ecology
at the School of Forest Sciences at the University of Eastern Finland in
Joensuu.
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