Plastic pollution is one of the biggest threats the oceans face today. But how much do we really know about it?
The environment plays a significant role to support life on
earth and saving marine ecosystems is one of the most important environmental
issues we are facing today. Many of these environmental issues are causing harm
to marine mammals, their habitats, and ecosystems around the world. Marine
ecosystems, which encompass the sea, marine wildlife, estuaries, and coastal
habitats, are fa
cing many
threats. The elimination of marine pollution has become one of the major issues
that pose a clear and present threat to human health and well-being.
Every year, an estimated 33 billion pounds of trash and other
pollutants enter the ocean. In fact, the amount of global trash
is expected to increase every year for the rest of the century! When talking
about ocean pollution there are many different types of chemical, light, and
plastic pollution. One of the most devastating and widespread problems we’re
facing today is plastic pollution. For many decades, plastic has affected the
health and life of humans in ways that have garnered the attention of the whole
world and sparked the question about the daily use of plastic. When throwing
out plastic, it is very easy to forget the value of plastic and how it can take
up thousands of years for it to decompose. Humans on a daily basis manage to
dump garbage into the ocean and leave the trash to float in rivers. Plastic is
one of the most harmful trash because it does not readily break down it just
accumulates in the ocean. The ocean is full of little plants and animals for
instance, phytoplankton that grows on things, so it sometimes floats along it
collecting debris that can harm or kill any organism that ingests it.
Why
is Marine Debris a Problem?
Marine
debris is a problem that has raised concerns for scientists as an increased
amount of marine debris has reached worldwide throughout our oceans and the
great lakes. Many of this marine debris comes from trash and many land-based
sources including litter, and debris from construction. This comes from
different sources and enters the oceans in many ways. Mostly, litter makes its
way into the ocean from a majority of people often entering the ocean and
leaving trash on beaches. Improper dumping or disposal of plastic leads to
contamination of the environment. The trash then goes directly into the ocean
and a collection of marine debris covers the seas and large bodies of water.
Debris that’s denser can sink centimeters or even several meters beneath the
surface and less dense debris remains floating with surface ocean currents. It
can take many years for debris to travel from coast to coast which causes the
plastic to break down. Small pieces of plastic can block sun rays making it
hard for plants and algae to get enough sunlight to create nutrients. These
tiny pieces of plastic can also accumulate in the stomachs of tiny marine
animals which makes it hard for them to digest food. It is also noteworthy that
small plastic particles have been found in human lung tissue. There is more and
more evidence that microplastics are entering the human body which has had a
wide range of health effects on humans
Specific debris items that are eaten by the marine taxa and are
responsible for causing death are shown in red. Debris items that are present
in the gastrointestinal tract (not responsible for mortality) are shown in
blue.
The
Great Pacific Garbage Patch
The Great Pacific Garbage Patch, discovered in 1997, is a
collection of ocean and marine plastic in the world and is the largest of one of the five offshore plastic accumulation
zones. Studies have found that 1.8 trillion pieces of plastic can be
found in this area of the Pacific Ocean between Hawaii and California. About
80% of the plastics in the garbage patch come from the land. Garbage patches
are made up of microplastics and if ingested can block the GI tract of many
organisms ultimately leading to starvation. As plastic waste proliferates
around the world, more research was put into microplastics as it is crucial and
microplastics fill our marine environment causing a greater concentration of
these particles to turn up in our food chain. Microplastics can enter the
environment from several sources which include plastic waste, plastic
microfibers like tiny polyester and threads from each cycle of a washing
machine, microplastics shed from car tires, etc. It’s also very important to
understand what effects they have on animals living in the ocean.
A study undertaken of the garbage patch shows that the plastic
floating between Hawaii and California has grown more than 600,000 square
miles TWICE the size of Texas.
Most
Polluted Beaches in the World
People from all over the world go to beautiful beaches filled with
clear waters with stretches of sand ideal for sunbathing and strolling along
the shores. However, contaminated beaches are arising a controversial issue to
the public as many beaches are becoming harmful if left untreated. Although we
are taught to believe that our plastic gets recycled, unfortunately in today’s
recycling processes, less than 9% of all plastic waste ever created has been
recycled. The developed world send’s a large part of our waste to
countries like China and Malaysia. For many of these developing countries,
better infrastructure is needed to properly dispose of the waste. Here is what
some of the world’s most polluted beaches look like today.
cientific
Fallacies and Common Misconceptions
With a lot
of focus on plastic pollution in the marine environment, there are a number of
myths and misconceptions surrounding our perception of plastic pollution. Here
are some of them:
Myth 1: “Ocean plastics are
just a trash problem”
Fact: Plastic particles have been found inside human lung tissue
and throughout the ocean food chain from mussels to fish to turtles to whales
Myth 2: “The Great Pacific
Garbage Patch” is a large island of plastic floating around on the surface in
the middle of the Pacific Ocean.
Fact: The
accumulation of plastic does not consist of a large island of plastic bottles,
plastic bags, and other discarded plastic debris. It’s more made up of small
microplastics and tiny particles that are not even visible to the naked eye.
Myth 3: Ocean plastic primarily comes from ocean dumping and industry,
such as cruise ships or container ships
Fact: Most
of the plastics in the ocean come from everyday items such as bags, bottles,
caps, food containers, etc. By limiting the use of plastics in our daily lives
we can reduce the amount of plastic in the ocean.
Strategies
For Preventing Plastic Pollution
“Plastic is not the root of the problem, but rather the single-use
lifestyle we’ve become accustomed to”
Faye
Haslam
Each of us
socially plays a role in being conscious consumers so correcting our plastic
waste problem requires each one of us to fundamentally change the way we think
about how plastics are made, used, and discarded. A plan of action is needed
for this issue because the scale of the problem in the upcoming years will be
critical. From reducing the use of single-use plastics to making mindful
purchase decisions, simply being aware of how our actions affect society can
impact the amount of waste that goes into the ocean every year. Many volunteer
organizations and individuals around the world have been fighting to save the
ocean from plastic pollution. Some non-profit agencies that initiate volunteer beach cleanups are:
International Coastal Cleanup: The
International Coastal Cleanup (ICC) engages people to remove trash from the
world's beaches and waterways. So far, more than 17 million volunteers have
collected more than 348 million pounds of trash
Plastic Free Foundation: The Plastic Free Foundation is helping millions
of people around the world to limit their use of plastic. The movement has
inspired 250 million in 177 countries to host events and make changes toward a
plastic-free lifestyle
1 million Women: Launched
in 2009, it is a movement of over 950,000 women and girls working to address
the most pressing issues our earth is facing today.
Plastics For Change: Committed to uplifting
waste-picker communities in India, the Plastics for Change foundation provides
sustainable opportunities for people living in India to improve their quality
of life.
Such approaches, adopted
by billions of individuals, could prove of immense significance in ensuring our
future health and food security as well as reducing waste and pollution
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