Is anything being done? Not really. There are some tokenistic efforts to tackle the plastics problem by cleaning the occasional beach and ongoing calls to limit certain forms of resource exploitation or waste dumping but all international laws in relation to this are largely ignored with impunity.
by Robert J. Burrowes
As the human onslaught against life on
Earth accelerates, no part of the biosphere is left pristine. The simple act of
consuming more than we actually need drives the world’s governments and
corporations to endlessly destroy more and more of the Earth to extract the
resources necessary to satisfy our insatiable desires. In fact, an initiative
of the World Economic Forum has just reported that ‘For the first time in
history, more than 100 billion tonnes of materials are entering the global
economy every year’ – see ‘The Circularity Gap Report
2020’ –
which means that, on average, every person on Earth uses more than 13 tonnes of
materials each year extracted from the Earth.
Hence, our world continues to vanish, as
has been extensively documented. For a summary, see ‘Human Extinction Now
Imminent and Inevitable? A Report on the State of Planet Earth’.
And nowhere is this more evident than in
the planet’s oceans, which are being systematically destroyed and where life is
being progressively extinguished.
In fact, our destruction of the oceans is
now so advanced that the fish, mammals (including seals, whales, manatees, sea
otters and polar bears), crustaceans (including crabs, lobsters, crayfish,
shrimps, prawns, krill and barnacles), coral reefs (made up of coral polyps,
marine invertebrate animals that live in colonies) and the millions of species
that live in and around them (including sponges, mollusks, sea anemones,
seahorses, sea turtles as well as crustaceans and an enormous variety of fish),
plants (such as algae, seaweed and seagrass), microscopic organisms (residing
in the ocean and on the ocean floor), invertebrates (such as sea urchins and
sea slugs), birds (including better known ones such as penguins, auks, murres,
razorbills, puffins, tubenoses – such as the albatross and petrels – pelicans
and gulls and a great many species that are less well known), and the other
lifeforms that live in and on the ocean are vanishing rapidly.
Starkly illustrating the catastrophic
nature of what is taking place, one recent incident alone killed 100 million
Pacific cod. See ‘Ocean heat waves like the
Pacific’s deadly “Blob” could become the new normal’. But, tragically, such incidents are no
longer unusual and, of course, they generate cascading impacts. See, for
example, ‘Fish all gone!... Millions
of small sea birds died since 2015’.
‘How can we destroy the oceans?’ you might
ask. Unfortunately, far too easily when you consider the range of assaults to
which they are being subjected.
So let me give you a brief 18-point outline
of what we are doing that is destroying the oceans – where life on Earth
originated and which remains the planet’s main life support system by
dominating the processes that keep our planet habitable such as regulating the
climate by absorbing excess carbon dioxide and heat – while also giving you
some idea of the impacts of this on the creatures that live in and on the
oceans.
As a result of human activities that
generate carbon emissions, we are dumping ever-increasing amounts of carbon
dioxide into the oceans which have absorbed 20–30% of total anthropogenic
emissions in the last two decades. This is causing the oceans to warm, acidify
and lose oxygen, among several other adverse outcomes. See ‘The Ocean and Cryosphere in
a Changing Climate: A Special Report of the Intergovernmental Panel on
Climate Change’.
p. 450. These adverse changes, in turn, generate a range of ‘downstream’
negative impacts. However, there are other human activities unrelated to carbon
emissions that are destroying the oceans too.
So here is the summary.
1. The oceans are warming.
In relation to warming, the oceans have
been heating up for several decades and, since 2005, the increase has been
unchecked. Moreover, it is occurring at all ocean depths, including in the deep
ocean (below 2,000 metres). In addition, the rate of warming has been
increasing and the rate of ocean uptake of atmospheric CO2 has continued to
strengthen in the last two decades in response to the increasing concentration
of CO2 in the atmosphere. This is causing the upper ocean to stratify making
the surface ocean less dense over time, compared to the deeper ocean, and
inhibiting the exchange between surface and deep waters.
As one result of this ocean warming, the
range of some species has expanded and, in the case of tropical species that
have expanded into higher latitudes, it has led to increased grazing on some
coral reefs, rocky reefs, seagrass meadows and epipelagic (near-surface)
ecosystems, leading to altered ecosystem structure.
Ocean warming has also contributed to
changes in the biogeography of organisms ranging from phytoplankton to marine
mammals, consequently changing community composition, and in some cases,
altering interactions between organisms. The net outcome is an adverse impact
on marine organisms and fisheries with serious implications for human
communities and food production.
Ocean warming is also manifesting in a
range of diverse and unpredicted ways with one of the more catastrophic
aberrations, touched on above, being the occurrence of ‘blobs’: huge patches of
unusually warm ocean water that can be millions of square kilometres in size.
These ‘marine heatwaves’ wreak havoc, sometimes killing millions of ocean
creatures in a single incident (including by disturbing food chains), forcing
others to relocate, and perhaps generating unusual blooms of toxic algae. See ‘Ocean heat waves like the
Pacific’s deadly “Blob” could become the new normal’.
Among its other impacts, the warming oceans
mean there is more available energy that can be converted into cyclonic winds.
Research on this subject indicates that there has been ‘an increase in intense
hurricane activity over the past 40 years’. See ‘Hurricanes and Climate
Change’ and ‘Changes in Tropical Cyclone
Number, Duration, and Intensity in a Warming Environment’. These events cause landslides, collapses
in fisheries, and damage to reefs and shallow-water habitats. When they impact
on coastal communities, they kill people and destroy properties, among other
outcomes. See ‘The state of our oceans – The damaging effects of ocean
pollution’.
Warming oceans also cause coral bleaching.
This is because corals have algae that live in their tissues and these algae
provide the coral with essential nutrients and give them their color. The
warming oceans cause this relationship to become stressed, forcing the algae
out of the coral. As a result, the coral becomes white, loses its main food
source, and becomes more vulnerable to disease. See ‘Coral Bleaching’.
Warmer ocean water causes sea level rise
too because warmer water has a greater volume than colder water. Of course, sea
level rise also occurs because of the additional water from melting land ice
and a devastating level of rise from this cause is already ‘locked in’ because
of past emissions. See ‘Sea Level Rise!’
Ocean warming and increased stratification
disturb ocean nutrient cycles and this is having a regionally variable (but usually
adverse) impact on many species too.
And finally, ocean warming – most likely
from ice loss in the Arctic – is weakening the Atlantic Meridional Overturning
Circulation (AMOC) which is one of the key drivers of global ocean circulation;
it includes the Gulf Stream that transports warm and salty tropical waters
north to the western coasts of Europe where the warm water releases heat to the
atmosphere, playing a key role in the warming of western Europe and thus its
functional habitability. Once the tropical water reaches the south and east of
Greenland, it cools before sinking to the base of the North Atlantic Ocean
because it is saltier and thus denser than the surrounding fresh water. The
water is then pushed south along the abyss of the Atlantic Ocean completing
what has been, from a human viewpoint, a perpetual cycle. See ‘Arctic sea-ice decline weakens the Atlantic Meridional
Overturning Circulation’ and ‘Global Ocean Circulation
Appears To Be Collapsing Due To A Warming Planet’. How much longer it will be so appears to
defy reliable scientific assessment. But as it breaks down, the adverse
outcomes multiply rapidly.
In fact, ocean circulation generally is
being impacted by the warming climate, as established by a recently concluded
study:
Ocean circulation plays a vital role in
regulating the weather and climate and supporting marine life…. Here, we show
for the first time, independent satellite observational evidence demonstrating
that the large-scale ocean gyres are moving poleward during the past four
decades. Further analysis based on climate models and various other data sets
reveal that the poleward shifting of the ocean gyre circulation is most likely
to be a consequence of global warming, which so far has not been well
recognized by the public and the scientific community…. Such changes have had
disastrous consequences…. See
‘Poleward shift of the major
ocean gyres detected in a warming climate’.
2. The oceans are becoming more acidic.
In response to the increasing carbon uptake
the oceans are also becoming more acidic. This has probably been the case for
three-quarters of the near-surface open ocean since prior to 1950 and it is
very likely that over 95% of the near surface open ocean has now been affected.
See ‘The Ocean and Cryosphere in
a Changing Climate: A Special Report of the Intergovernmental Panel on Climate
Change’. p.
450.
In a stark warning issued by the
International Programme on the State of the Ocean (IPSO) in 2013, scientists
had already noted that the oceans are becoming more acidic at the fastest
rate in 300m years. Why? Because of carbon dioxide emissions from burning
fossil fuels. ‘This [acidification] is unprecedented in the Earth’s known
history. We are entering an unknown territory of marine ecosystem change, and
exposing organisms to intolerable evolutionary pressure. The next mass
extinction may have already begun.’ See ‘Rate of ocean acidification
due to carbon emissions is at highest for 300m years’.
In its latest report, issued in 2018, IPSO
declared the following: ‘The ocean, by its breadth and depth, occupies more
than 97% of the living space on Earth. It dominates the processes that keep our
planet habitable.... But this protection comes at a cost as the ocean is now
becoming more acidic.... For too long we have mistaken the immensity of the
ocean for inviolability, but those days are gone, and we stand at a critical
juncture. Cutting emissions, while essential, will not alone solve the
environmental problems we face.’ See ‘Eight urgent fundamental and
simultaneous steps needed to restore ocean health, and the consequences for
humanity and the planet of inaction or delay’.
3. The oceans are deoxygenating.
Oxygen in the air or water is of paramount
importance to most living organisms. Unfortunately, as a recent report
documents in considerable detail (and which confirms earlier research), oxygen
levels are currently declining across the ocean (and not just in the more
widely known ocean ‘dead zones’: see below). See ‘Ocean deoxygenation:
Everyone’s problem. Causes, impacts, consequences and solutions’.
Deoxygenation of the ocean is the result of
two overlying causes – eutrophication (the process by which a body of water
becomes overly enriched with minerals and nutrients thus inducing excessive
growth of algae which absorb the oxygen at the expense of the water body) as a
result of nutrient run-off from land and deposition of nitrogen from the
burning of fossil fuels, as well as the heating of ocean waters as another
outcome of burning fossil fuels, primarily causing a change in ventilation with
the overlying atmosphere so that the oceans hold less soluble oxygen (and which
is compounded by reduced ocean mixing and changes in currents and wind
patterns). Ocean deoxygenation is but the latest consequence of our activities
on the ocean to be recognized and is yet another ‘major stressor’ on marine
systems.
Eutrophication has been identified as a
problem in 900 separate areas of the ocean, with 700 of these suffering hypoxia
(low oxygen) as a result. But because ocean warming lowers oxygen directly, it
is now impacting vast areas of the ocean as well. As a result, ‘the ocean has
now become a source of oxygen for the atmosphere even though its oxygen
inventory is only about 0.6% of that of the atmosphere’. Moreover, different
analyses have concluded that global ocean oxygen content has decreased by 1-2 %
since the middle of the 20th century. Given existing trends in the factors
driving this change, the rate of loss must accelerate.
Obviously, the future intensification and
expansion of low oxygen zones will have further adverse ecosystem and
biogeochemical consequences, particularly in combination with, and sometimes
synergistically with, other threats. For example, ‘ocean warming accompanied by
deoxygenation will drive habitat contraction and fragmentation in regions where
oxygen levels decline below metabolic requirements’.
4. The oceans are being contaminated with
nuclear radiation.
Despite an extensive and ongoing coverup by
the Japanese government and nuclear corporations as well as the International
Atomic Energy Agency (IAEA), vast amounts of radioactive waste are being dumped
into the biosphere from the TEPCO nuclear power plant at Fukushima in Japan
including by discharge into the Pacific Ocean. This is killing an incalculable
number of fish and other marine organisms and indefinitely contaminating
expanding areas of that ocean. See ‘Fukushima: A Nuclear War
without a War: The Unspoken Crisis of Worldwide Nuclear Radiation’, ‘2019 Annual Report – Fukushima 8th Anniversary’, ‘Eight years after triple
nuclear meltdown, Fukushima No. 1’s water woes show no signs of ebbing’ and ‘Fukushima’s Three Nuclear
Meltdowns Are “Under Control” – That’s a Lie’.
In addition, one critical legacy of the US
military’s 67 secretive and lethal nuclear weapons tests on the Marshall
Islands between 1946 and 1958 is the ‘eternally’ radioactive garbage left
behind and now leaking into the Pacific Ocean. See ‘The Pentagon’s Disastrous
Radioactive Waste Dump in the Drowning Marshall Islands is Leaking into the
Pacific Ocean’.
And, of course, there are up to 70 ‘still
functional’ nuclear weapons as well as nine nuclear reactors lying on the ocean
floor as a result of accidents involving nuclear warships and submarines. These
are leaking an unknown amount of radiation into the oceans. See ‘Naval Nuclear Accidents: The
Secret Story’,
‘A Nuclear Needle in a Haystack:
The Cold War’s Missing Atom Bombs’ and, for one specific example (the former Soviet
submarine Komsomolets), see ‘Soviet nuclear submarine
emitting radiation “100,000 times normal level” into sea, scientists find’.
5. The oceans are being contaminated as a
result of offshore oil and gas drilling, as well as oil spills.
The complex but far-from-perfect technologies
and the many environmental challenges associated with oil and gas drilling in
the ocean have ensured the near-routine occurrence of often disastrous
accidents which invariably lead to fossil fuels and other contaminants being
discharged into the ocean, sometimes on a vast scale.
The classic case, of course, was the
BP-leased Deepwater Horizon rig which had drilled a well to 35,055 feet (10
kilometers) while operating in 4,130 feet (1 kilometer) of water. The oil rig
exploded and sank in the Gulf of Mexico on 20 April 2010 releasing 5 million
barrels of oil into the ocean making it the worst environmental disaster in US
history. It caused extensive damage to the ocean, corals and beaches and killed
millions of fish, birds and marine mammals in and on the ocean. Despite a
‘clean up’, only one quarter of the oil was ever removed from the ocean. See ‘The Dangers of Offshore
Drilling’.
The simple reality is that despite the
industry’s safety claims, oil rig fires are commonplace. See ‘Why Is Offshore Drilling So
Dangerous?’
And so are oil spills into the ocean for
other reasons, including from tankers – see ‘Top 10 Worst Oil Spills’ – as the Exxon Valdez disaster in 1989
demonstrated all too graphically. See ‘The Complete Story of the
Exxon Valdez Oil Spill’.
Often enough as well, oil is discharged
into the ocean as a result of military activities and war. During the Gulf War
in 1991, for example, vast quantities of oil were released into the Persian
Gulf as a military tactic. See ‘The World’s Largest Oil
Spill: The Gulf War Kuwait, 1991’ and ‘Gulf War Oil
Disaster: A Brief History’.
6. The oceans are being damaged by deep sea
mining.
Recent technological advances spurred by
growing demand for minerals used in consumer electronics has led to increased
interest in deep sea mining as the next frontier in resource extraction. Hailed
as the new ‘global gold rush’, deep sea mining entails extracting minerals from
deposits in the deep sea (approximately 400 to 6,000 meters below sea level)
for use in emerging and high technology, among other sectors. Predictably, deep
sea mining shares many features with past resource scrambles, including a general
disregard for environmental and social impacts, and the marginalization of
indigenous peoples and their rights. See ‘Broadening Common Heritage:
Addressing Gaps in the Deep Sea Mining Regulatory Regime’ and ‘Deep-sea mining possibly as
damaging as land mining, lawyers say’.
Beyond these adverse impacts, however,
recent research makes it increasingly clear that deep sea mining poses a grave
threat to vital seabed functions, including those played by hydrothermal vents
and cold seeps, for example, which support remarkable biodiversity and sequester
disproportionate amounts of carbon. Moreover, recent scientific breakthroughs
have further revealed that most of the excess heat resulting from increased
atmospheric concentrations of greenhouse gases has been absorbed by the deep
ocean, thereby significantly limiting the climate catastrophe’s impacts on the
ocean’s surface and on land. See ‘Deep sea ecology: hydrothermal vents and cold seeps’ and ‘Broadening Common Heritage:
Addressing Gaps in the Deep Sea Mining Regulatory Regime’.
In essence, deep sea mining threatens the
‘common heritage’ the seabed provides through its substantial contributions to
biodiversity, climate regulation and heat storage.
7. The oceans are being polluted with
industrial (including chemical) and farming wastes including pesticides and
fertilizers which are generating ‘dead zones’, regions of the oceans that are
devoid of life.
Despite the existence of the ‘Convention on the Prevention
of Marine Pollution by Dumping of Wastes and other Matter’ (otherwise known as the London Dumping
Convention, 1972), an international treaty ‘that created a global system to
protect the marine environment from pollution caused by ocean dumping’ – and
certainly including radioactive wastes, fossil fuels, some toxic wastes,
biological and chemical warfare agents, and persistent synthetic materials such
as plastic – and supposedly ‘ensures that the few materials that are permitted
for ocean disposal are carefully evaluated to make sure that they will not pose
a danger to human health or the environment’ – see ‘1972 Prevention of Marine
Pollution by Dumping of Wastes and Other Matter (London Convention)’ – the Convention must be one of the least
comprehensive and most violated in international law. In any case, there is no
evidence that it has any restraining impact on the actions of states or
corporations as the evidence above and below demonstrates.
For example, a vast runoff of industrial
wastes (including heavy metals), agricultural poisons, fossil fuels and other
wastes is discharged into the ocean, adversely impacting life at all ocean
depths – see ‘Staggering level of toxic
chemicals found in creatures at the bottom of the sea, scientists say’ – and, as noted above, generating ocean
‘dead zones’ (of which there are many hundred): regions that have too little
oxygen to support marine organisms. See ‘Ocean Dead Zones Are Getting
Worse Globally Due to Climate Change’ and ‘Ocean “dead zones” are
spreading – and that spells disaster for fish’.
8. The oceans are being polluted by
nitrogen.
While nitrogen is vital to the health of
the ocean, like everything else that makes up the ocean, it must be in balance,
not fluctuating beyond very narrow parameters. See ‘Understanding nitrogen’s
role in the ocean’.
But it is now well past the point when this
state has been the case.
This is because nitrogen is one important
element of the industrial and agricultural pollution just mentioned. It is the
nitrogen component in the runoffs of these wastes (such as fertilizers and
sewage) into the ocean that causes harmful algal blooms, eutrophication and
ocean dead zones (hypoxia) while making marine life more vulnerable to disease,
reducing biodiversity in shallow estuarine waters, degrading ocean ecosystems
and contributing to global warming. ‘Algal blooms deplete dissolved oxygen,
causing marine wildlife to suffer and become more vulnerable to toxins and
disease. Nitrogen in the blooms also produces nitrous oxide (N20), a greenhouse
gas far more potent than carbon dioxide. This contributes to global warming,
which further degrades oceans by increasing acidity in the water as the oceans
absorb more and more carbon.’ See ‘Stop Nitrogen Pollution of
Oceans – Green Algal Slime Busters’.
9. The oceans are being polluted with
discharges from warships, commercial shipping and cruise ships: bilge water,
ballast water, sewage, graywater and general rubbish.
Despite the 1973 International Convention for
the Prevention of Pollution from Ships, known as the MARPOL Convention, which has
been routinely added to over subsequent years and gives the impression of being
comprehensive, there is obviously little interest in abiding by the terms of
the Convention and little evidence that most ship crews do so. Moreover, given
that many provisions of the Convention focus on minimizing discharges within 12
nautical miles of land, that leaves a great deal of ocean into which such
discharges can be done legally even if disposal of plastics beyond the 12 mile
limit remains illegal.
In addition, while the MARPOL Convention
was theoretically designed to minimize releases by both operational and
accidental causes, laws do not prevent accidents as the long list of oil tanker
accidents, touched on above, such as that of the Odyssey in 1988, the Exxon
Valdez in 1989 and the Haven in 1991, resulting in massive oil
discharges into the ocean reminds us. See, for example, ‘Top 10 Worst Oil Spills’.
But the law is violated deliberately in any
case. Bilge water – a filthy, oily mess of fresh water, seawater, chemicals,
oil, sludge, and other fluids from a ship – is found at the very bottom of the
ship where the two sides of the hull meet. Seawater is pumped into large ships
to cool their engines and as the water moves through the cooling system it
picks up loose oil and waste from the engine and this, together with oil drips
from the pipes and machinery fittings, ends up in the bilge well of the ship.
See ‘What is Bilge Water?’
However, despite the MARPOL Convention,
across the world many oceangoing vessels break these international laws and
empty their untreated bilge water into the ocean. For example, in 2016 Princess
Cruises, one of 10 brands owned by Carnival Corporation, the world’s largest
cruise holiday company, was fined £32million for bypassing oil treatment
systems on their vessels, deliberately and illegally dumping thousands of
gallons of oil and waste off the UK coast. See ‘Cruise line fined £32m for
using “magic pipe” to dump oily waste into UK waters’.
And while we are on cruise ships, of which
there are more than 300 carrying half a million passengers annually – see ‘2018 Worldwide Cruise Line
Passenger Capacity’ – the glossy advertising brochures do not tell you the extraordinary
downside of this holiday/travel option which, among many other problems, are an
ecological nightmare for our oceans. Altogether, the 16 major cruise lines
generate over one billion gallons of sewage each year, much of it raw or poorly
treated and simply discharged into the ocean. And apart from the carbon
emissions (with one cruise ship producing 13 million cars worth of CO2 each
day) and the oily bilge water, grey water and various other pollutants are a
concern both while at sea and docked in port. See ‘16 Things Cruise Lines Never
Tell You’.
And while some shipwrecks are a source of
fascination for scuba divers and treasure hunters, the vast bulk of the
estimated 3 million shipwrecks, particularly more recent ones, are just more
junk (or even sources of contamination) in the ocean. See ‘How Many Shipwrecks Are
There?’
10. The oceans are being used as a vast
rubbish dump, resulting in such phenomena as the Great Pacific Garbage Patch.
We are making the oceans a rubbish dump for
vast quantities of pollutants and contaminants, ranging from plastic,
microplastics, microbeads and microfibers to toxic and radioactive wastes.
In relation to plastic, a major scientific
study involving 24 expeditions conducted between 2007 and 2013, which was
designed to estimate ‘the total number of plastic particles and their weight
floating in the world’s oceans’ the team of scientists estimated that there was
‘a minimum of 5.25 trillion particles weighing 268,940 tons’. See ‘Plastic Pollution in the
World’s Oceans: More than 5 Trillion Plastic Pieces Weighing over 250,000 Tons
Afloat at Sea’
and ‘Full scale of plastic in the
world’s oceans revealed for first time’.
Since then, of course, the problem has
become progressively worse with vast quantities of plastic (entangled in other
garbage) forming into floating garbage patches that are vast in size. See ‘Plastic Garbage Patch Bigger
Than Mexico Found in Pacific’ and ‘Plastic Chokes the Seas’.
Furthermore, a recent UN report documenting
marine debris – that is, rubbish in the ocean – noted the increasing number of
marine species impacted by debris through ingestion and entanglement and
provided further information on the types of impacts occurring, particularly
with respect to microplastics and their physical and chemical effects. The
report paid particular attention to ‘persistent, bio-accumulative and toxic
substances’ (PBTs), noting the recent studies of the presence of toxic
chemicals derived from plastics in marine taxa in a separate appendix. See ‘Marine Debris:
Understanding, Preventing and Mitigating the Significant Adverse Impacts on
Marine and Coastal Biodiversity’.
Another article highlights the now
ubiquitous nature of the ocean garbage problem: There is rubbish everywhere,
literally. See ‘How an Uninhabited Island
Got the World’s Highest Density of Trash’.
‘Does it matter?’ you might ask. According
to a UN report, it matters a great deal: marine debris is harming an increasing
number of species, now more than 800, and previous research places the cost of
pollution caused by marine debris at $13 billion annually. See ‘New UN report finds marine
debris harming more than 800 species, costing countries millions’.
11. The oceans are being overfished and
illegally fished.
Apart from the destruction wrought by
aquaculture, considered in the next section, the world’s oceans are being
plundered mercilessly for remaining fish stocks. In 2017, a report from the
United Nations Conference on Trade and Development (UNCTAD) noted that ‘The
international community is harvesting fish at unsustainable biological levels.
The Mediterranean Sea is about 70 per cent exploited; the Black Sea 90 per
cent.’ Of course, the fact that the fishing industry is subsidized to the
tune of $US35billion annually (more than one-fifth of the annual fish
market of $US150billion) adds enormous additional incentive to fish the world’s
oceans. Needless to say, these subsidies facilitate ‘a race to the bottom’ as
fishing fleets compete to harvest increasing amounts of fish ‘at a time when
seafood is already a scarce resource’. See ‘Next month’s ocean
conference eyes cutting $35 billion in fisheries subsidies – UN trade
officials’.
Unfortunately too, despite supposed
ambitions to end illegal, unreported and unregulated (IUU) fishing methods, the
annual value of fish caught these ways is estimated at $US23billion. See ‘More Plastic than Fish or
How Politicians Help Ocean Destruction’.
In essence, with a global fishing fleet of
4.6 million vessels, massive government subsidies to encourage over-fishing,
virtually nothing done to prevent illegal and unregulated fishing, and almost
half the human population relying on fish for an adequate diet, the increasing
biological unsustainability of fishing is destined, particularly when
considered in conjunction with other threats mentioned above and below, to
wreak ongoing havoc on fish populations (as well as species caught incidentally
as ‘bycatch’) until the oceans are emptied of fish.
Moreover, given the ever-neglected
synergistic impacts of the many threats discussed in this article, as well as
the inevitably increasing number of incidents – such as the ‘blob’ that
suddenly killed 100 million Pacific cod mentioned above – this can now happen
very quickly.
Of course, it is not just fish that are
being taken from the ocean. Many other species are heavily impacted too.
Whales have been hunted mercilessly for a
very long time with the total number in the ocean reduced from about 5 million
500 years ago to about 1 million now. This has caused enormous damage to the
ocean but also the biosphere as a whole given the prodigious capacity of whales
to sequester carbon, for example. See ‘How Whales Sequester Tonnes
of CO2: Our Secret Weapon against Climate Change’. Apart from the ongoing hunting – see ‘Iceland is killing fin
whales for Japanese pet treats’ – whales are now killed by many other human
activities ranging from entanglement in discarded fishing gear and consumption
of plastic – see ‘Plastic Waste Kills Six-Ton
Whale’ – to
seismic airguns which are a probable cause of beach strandings – see ‘337 Dead Whales In Chile Is
Worst Case Of Mass Deaths So Far’ – as explained below.
And sea otters – which play a vital role in
maintaining the health of the ocean’s kelp forests by eating the sea urchins
that eat the kelp – have also been mercilessly slaughtered in vast numbers for
their fur pelts in the past. More recently, however, they are being hunted by
killer whales which have changed their diet to include otters because their
main food source, the great whale, has been almost entirely wiped out by commercial
hunting. See ‘Sea Otters as Habitat
Protectors’.
12.
The oceans are being subjected to destructive fishing practices, such as
bottom trawling, blast fishing, cyanide fishing, ghost fishing and aquaculture.
Some fishing methods are so destructive
that they cause harm to the ocean environments where fish are caught. ‘Bottom
trawling’ is one such practice: it involves fishing boats dragging large, heavy
nets along the ocean floor and it is practiced on a huge scale all around the
world. Blast fishing involves the use of explosives and cyanide fishing uses
poison.
Damage to the surrounding ocean – including
corals, sponges, and other organisms living on the seabed – is inevitable
‘collateral damage’ to these types of fishing. See ‘The state of our oceans – The damaging effects of
ocean pollution’.
But if you think the above fishing
practices are bad, consider ‘ghost fishing’: the damage done by the (at least)
640,000 tonnes of fishing gear that is lost or abandoned in the oceans each
year. Official estimates indicate that ‘ghost gear’ makes up 10% of waste in
the oceans. Moreover, while it has an enormous adverse impact on ocean life,
derelict gear also detrimentally alters seabed and marine environments. See ‘Our oceans are haunted: How
“ghost fishing” is devastating our marine environments’ and ‘Ghost Fishing? 640,000
Tonnes of Fishing Gear Dumped in Oceans Every Year’.
And if the existing overfishing and illegal
fishing are not doing enough damage to Earth’s oceans, every year 80 million
tons – almost half of annual seafood consumption – is produced by
‘aquaculture’: an industry that builds floating cages for salmon, artificial
ponds for prawns on the coasts, and tanks for seafood in factory buildings –
that is, aquatic factory farms. Of course, aquaculture is not the solution to
overfishing: it is worsening the problem. ‘Trawler fleets sweep up vast quantities
of wild fish and grind them into fishmeal and fish oil to feed farmed fish. Far
from being “sustainable”, this is an incredibly inefficient and wasteful
process: it takes up to five kilos of edible fish such as anchovies, mackerels
or sardines, for example, to produce a single kilo of salmon.’
Moreover, as traditional stocks of species
used to make fishmeal and fish oil collapse, the industry becomes less
discriminating in its selection of targeted species and frequently includes
juveniles as well as rare and endangered species, including turtles, stingrays
and sharks. Predictably investigators researching the problem ‘did not have to
dig deep to uncover shocking evidence of how this industry is trashing the
oceans, but the full scale of its impacts is concealed from public view’. See ‘Fishing for Catastrophe: How
global aquaculture supply chains are leading to the destruction of wild fish
stocks and depriving people of food in India, Vietnam and The Gambia’, ‘Stop plundering the oceans
for industrial aquaculture!’ and ‘Until the Seas Run Dry: How
industrial aquaculture is plundering the oceans’.
Another problem with aquaculture is the way
in which disease and parasites can spread among the intensively-farmed fish
with, for example, the sea louse causing enormous problems among farmed salmon
in Scotland, Norway, and Canada reducing the amount of fish produced by tens of
thousands of tons per year and causing increasingly drastic – that is, inhumane
and environmentally harmful – responses to be attempted. See ‘Salmon farming in crisis:
“We are seeing a chemical arms race in the seas”’.
But disease and parasites can spread from
the intensively farmed fish to wild populations too and, for example, this is
causing populations of wild salmon and trout to decrease. See ‘The state of our oceans –
The damaging effects of ocean pollution’.
13. The oceans are being damaged by sand
mining.
The largest mining endeavour on Earth,
accounting for 85% of all mineral extraction, is sand mining. See ‘The Hidden Environmental
Toll of Mining the World’s Sand’. However, one study has suggested that existing
figures ‘grossly underestimate global sand extraction and use’ because official
statistics widely under-report sand use and typically ‘do not include
nonconstruction purposes such as hydraulic fracturing and beach nourishment’.
See ‘Global Patterns and Trends
for Non‐Metallic Minerals used for Construction’ and ‘The world is facing a global
sand crisis’.
More problematically than inaccurate
official statistics, however, is that sand mining, of all mining activity, is
‘the least regulated, and quite possibly the most corrupt and environmentally
destructive.’ See ‘The Hidden Environmental
Toll of Mining the World’s Sand’.
Why is sand mined? Sand is mainly used for
the concrete that goes into building but it is also a key ingredient for roads,
glass and electronics. In addition, massive amounts of sand are mined for land
reclamation projects, shale gas extraction and beach renourishment programs.
See ‘A looming tragedy of the
sand commons’
and ‘The world is facing a global
sand crisis’.
Of course, not all of this sand comes from
the oceans but plenty of it does. Moreover: ‘As land quarries and riverbeds
become tapped out, sand miners are turning to the seas, where thousands of
ships now vacuum up huge amounts of the stuff from the ocean floor.’ See ‘The Deadly Global War for
Sand’.
For example, Britain now gets up to a
quarter of its sand from sand banks off East Anglia in the North Sea, dredging
up to 10 million tons from a region where there has been concern that the loss
of sediment accelerates rampant coastal erosion, as well as damaging sea-bed
communities such as crabs and starfish. See ‘A new sand and gravel map
for the UK Continental Shelf to support sustainable planning’ and ‘The Hidden Environmental
Toll of Mining the World’s Sand’.
But much of the sand dredged from the ocean
is used for land reclamation projects, particularly in Asia. Most notoriously,
Singapore has created an extra 50 square miles of land, expanding its area by
20 percent. How? It imported more than half-a-billion tons of sand, most of it
from Indonesia, where at least 24 small islands have reportedly been removed
from the map. But countries like the Philippines, Malaysia and China are also
reclaiming vast quantities of sand, usually to expand or build coastal cities
and, in China’s case, to dump on reefs and make islands to consolidate its
territorial claims to the South China Sea. See ‘The Hidden Environmental
Toll of Mining the World’s Sand’.
Does this cause much damage to the ocean
floor? According to a United Nations Environment Program report: ‘Dredging and
extraction... from the benthic (sea bottom) zone destroys organisms, habitats
and ecosystems and deeply affects the composition of biodiversity, usually
leading to a net decline in faunal biomass and abundance’. See ‘Sand, rarer than one thinks’.
14. The oceans are being damaged by port
and harbour dredging.
There is growing economic and social demand
for the development of coastal regions all over the world. Virtually all of
these activities, such as coastal construction, land reclamation, beach
reclamation and port construction/maintenance, involve dredging: the
‘excavation, transportation and disposal of soft-bottom material’ such as sand
and debris from the bottom of ports, harbors, and marinas usually so that
facilities are kept deep enough for ships to use. Dredging is also carried out
where a river or ocean currents drop lots of sediment onto the seabed, to
improve water drainage from a river so that flood risk is reduced and to remove
sediments on the seabed if they are contaminated with environmental pollutants.
But, of course, all of this comes at a cost
to the local ecology. Notably, in many cases, dredging has contributed to the
loss of coral reef habitats. This can occur directly, due to the removal or
burial of reefs, or indirectly, as a consequence of stress to corals caused by
elevated turbidity and sedimentation. Dredging can also affect surrounding
areas in a number of ways including turbid plumes, sedimentation and the
release of contaminants. See ‘Environmental impacts of
dredging and other sediment disturbances on corals: A review’.
Dredging does not only adversely impact
coral reefs, however. Dredging also kicks up a lot of debris into the water
disturbing the resident plants and animals. And when the collected sediment is
dumped at sea, it again disturbs the resident organisms.
15. The oceans are being damaged by the
increasing spread of invasive species.
Invasive species are those animals or
plants from another region of the world that arrive in a new environment where
they do not belong. They can be introduced to an area by ship ballast water,
accidental release, ocean temperature rises allowing them to migrate,
attachment to ship hulls or floating plastic, and most often, by people.
Invasive species usually do not have natural predators in their new environment
which means their populations can increase rapidly. They often compete with
indigenous species for local resources, can permanently alter habitats, destroy
biodiversity and lead to the extinction of plants and animals. See ‘What is an invasive
species?’
The lionfish is an excellent example. A
carnivorous fish native to the Indo-Pacific, it is now an invasive species in
the Atlantic, notably the U.S. southeast and Caribbean coastal waters. Because
the lionfish is a top predator, it has the capacity to harm reef ecosystems by
competing for food and space with overfished native stocks such as snapper and
grouper. Scientists fear that lionfish will also kill off species, such as
algae-eating parrotfish, that will allow seaweed to overtake the reefs. The
lionfish population is continuing to grow – a mature female releases roughly
two million eggs a year – and to expand its range. With no known predators,
this invasive species is causing enormous damage in its new home. See ‘What is a lionfish?’
16. The oceans are being damaged by the
live trade in fish and coral for the aquarium industry.
Because it is difficult to breed marine
fish in aquariums, they must be captured from the wild. The tropical seas
around Indonesia, the Philippines, Sri Lanka, the Maldives, and the central
Pacific Islands including Hawaii are particularly popular as sources for these
fish but there are other sources too. Because ornamental fish are in high
demand and can have a very high market value, they are being caught in ever
larger numbers threatening the sustainability of the fishery and the habitat in
which they are caught. For example, the Yellow Tang, which cannot be bred in
captivity, is one of Hawaii’s most targeted fish with fishers taking somewhere
between 2 and 10 million Yellow Tangs every year. As a result, its population
has plunged in recent years. See ‘The state of our oceans – The damaging effects of
ocean pollution’ and ‘The Hawaii Legislature wants
to stop the aquarium fish trade. The governor has other ideas’.
Not content with reef fish alone, however,
since 1990 the aquarium trade has seen a shift in consumer preference from
fish-only aquariums to miniature reef ecosystems. As a result, the most recent
estimates suggest that the trade targets over 150 species of stony corals,
hundreds of species of non-coral invertebrates, and at least 1,472 reef fish
species from 50 families.
Hence, with about 1,800 species of fish
traded internationally for some 2,000,000 (private and public) aquariums
worldwide – see ‘Revealing the Appetite of
the Marine Aquarium Fish Trade: The Volume and Biodiversity of Fish Imported
into the United States’ – and the industry worth about $5billion annually –
see ‘The Hawaii Legislature wants
to stop the aquarium fish trade. The governor has other ideas’ – the trade in fish and coral is now a
major global enterprise.
Little, if any of it, however, is
sustainable. Even worse, virtually all of the saltwater fish that are captured
for aquariums are caught illegally using cyanide. This also kills non-targeted
fish and coral (at the rate of one square meter per fish captured) as
collateral damage. As the coral on the reef is progressively killed, reef fish,
crustaceans, plants, and other animals no longer have food, shelter, and
breeding grounds and these impacts ripple up the food chain affecting thousands
of species. Given that reef habitats provide food for tens of millions of
people and contribute to the livelihoods, through commercial fishing and
tourism, of many more, capturing fish using cyanide is utterly destructive. See
‘The Horrific Way Fish Are
Caught for Your Aquarium – With Cyanide’.
17. The oceans are being damaged by the
increasing level of noise pollution.
Several studies have revealed the nature
and extent of the damage caused to ocean life by human activities that generate
noise in the oceans. And there have been calls by scientists to protect marine
life from such noise. See, for example, ‘Marine Life Needs Protection
from Noise Pollution’.
The main noises are generated by nuclear
explosions, ship-shock trials (explosions used by the Navy to test the
structural integrity of their ships), seismic airgun arrays, military sonars,
supertankers, warships, merchant vessels (of which there are now more than
53,000 in the world: see ‘Number of ships in the world
merchant fleet’),
fishing vessels and pleasure craft (such as speed boats and jet skis). For
example, seismic airgun surveys to discover oil and gas deposits are loud
enough ‘to penetrate hundreds of kilometers into the ocean floor, even after
going through thousands of meters of ocean’. See ‘A Review of the Impacts of
Seismic Airgun Surveys on Marine Life’.
The damage these noises cause to marine
mammals include disruption of feeding and breeding habitats – see ‘Fin whale (Balaenoptera
physalus) population identity in the western Mediterranean Sea’ – hearing loss – see ‘Marine seismic surveys and
ocean noise: time for coordinated and prudent planning’ – physiological changes such as stress
responses to trauma and a weakened immune system; behavioral alterations such
as avoidance responses; a change in vocalizations or through masking
(obliterating sounds of interest); interference with communications, particularly
among species, such as humpback and fin whales, that communicate over distances
of at least tens of kilometers; and through impacts on prey. Seismic airguns
are a probable cause of whale strandings (‘beachings’) and deaths as well. See ‘A Review of the Impacts of
Seismic Airgun Surveys on Marine Life’.
But studies of fish, turtles and
invertebrates such as squid also reveal a range of adverse impacts to
anthropogenic noise including seismic air guns. Fish have exhibited damaged
ears, decreased egg viability, increased embryonic mortality and damage to
brain cells. Turtles have exhibited behavioural change and hearing loss with
squid suffering internal injuries with organs and ears badly damaged. See ‘A Review of the Impacts of
Seismic Airgun Surveys on Marine Life’.
18. The oceans are being damaged by
wildfires.
Just because the oceans cannot burn, it
does not mean that they are not adversely impacted by wildfires. Apart from the
people and wildlife they kill, wildfires leave vast amounts of charred plants
and ash behind which subsequent rains wash into creeks and rivers where it
flows into coastal lakes, estuaries, and seagrass and seaweed beds with a range
of adverse impacts on the ocean and life that occupies these areas. For a
fuller explanation in one recent context, see ‘Australia’s Marine Animals
Are the Fires’ Unseen Victims’.
Summary
As can be seen from the evidence presented
above, the oceans are under siege on a vast range of fronts. They are being
stripped of everything of value to humans (ranging from its many creatures,
such as fish and whales, to products such as sand, oil and minerals) while
having a monumental range and quantity of garbage and pollutants (ranging from
household to radioactive waste) dumped into them.
Is anything being done? Not really. There
are some tokenistic efforts to tackle the plastics problem by cleaning the
occasional beach and ongoing calls to limit certain forms of resource
exploitation or waste dumping but all international laws in relation to this
are largely ignored with impunity. Other efforts have less than marginal
impact. Of course, there is also plenty of talk, including that which will take
place at the forthcoming UN Ocean Conference in June 2020 when powerful corporate
interests will again ensure that nothing profound happens.
So while there is considerable but still
utterly inadequate attention given to the climate catastrophe and some
activists draw attention to other threats to human survival (such as the
nuclear threat, the biodiversity crisis, the dangers of electromagnetic
radiation and especially 5G, geoengineering, and destruction of the
rainforests), the ongoing threat to the biosphere as a whole, including the
oceans, attract only marginal attention and, sometimes, tokenistic responses.
And because human beings are so
psychologically dysfunctional and, so far at least, incapable of responding
strategically to our multifaceted crisis, the urge to consume and accumulate
will continue to overwhelm serious efforts to avert our own extinction.
Saving the Earth’s Oceans
If you wish to fight powerfully to save
Earth’s biosphere, including the oceans, consider joining those participating
in ‘The Flame Tree Project to
Save Life on Earth’ which outlines a simple program to systematically reduce your
consumption and increase your self-reliance over a period of years.
Given the fear-driven violence in our world
which also generates the addiction of most people in industrialized countries
to the over-consumption that is destroying Earth’s biosphere – see ‘Love Denied: The Psychology
of Materialism, Violence and War’ – consider addressing this directly starting with
yourself – see ‘Putting Feelings First’ – and by reviewing your relationship with
children. See ‘My Promise to Children’ and ‘Nisteling: The Art of Deep
Listening’.
For fuller explanations, see ‘Why Violence?’ and ‘Fearless Psychology and Fearful Psychology: Principles and Practice’.
If you wish to campaign strategically to
defend the oceans then consider joining those working to halt the climate
catastrophe, end military activities of all kinds including war, and halt all
forms of resource extraction from the oceans as well. See Nonviolent Campaign Strategy which already includes a comprehensive
list of the strategic goals necessary to achieve two of these outcomes in ‘Strategic Aims’.
In those cases where corrupt or even
electorally unresponsive governments are leading the destruction of the oceans
– by supporting, sponsoring and/or engaging in environmentally destructive
practices – it might be necessary to remove these governments as part of the
effort. See Nonviolent Defense/Liberation
Strategy.
You might also consider joining the global
network of people resisting violence in all contexts, including against the
biosphere, by signing the online pledge of ‘The People’s Charter to
Create a Nonviolent World’.
Or, if none of the
above options appeal or they seem too complicated, consider committing to:
The Earth
Pledge
Out of love for the Earth and all of its
creatures, and my respect for their needs, from this day onwards I pledge that:
1. I will listen deeply to children (see explanation above)
2. I will not travel by plane
3. I will not travel by car
4. I will not eat meat and fish
5. I will only eat organically/biodynamically
grown food
6. I will minimize the amount of fresh
water I use, including by minimizing my ownership and use of electronic devices
7. I will not buy rainforest timber
8. I will not buy or use single-use
plastic, such as bags, bottles, containers, cups and straws
9. I will not use banks, superannuation
(pension) funds or insurance companies that provide any service to corporations
involved in fossil fuels, nuclear power and/or weapons
10. I will not accept employment from, or
invest in, any organization that supports or participates in the exploitation
of fellow human beings or profits from killing and/or destruction of the
biosphere
11. I will not get news from the corporate
media (mainstream newspapers, television, radio, Google, Facebook, Twitter…)
12. I will make the effort to learn a
skill, such as food gardening or sewing, that makes me more self-reliant
13. I will gently encourage my family and
friends to consider signing this pledge.
Do all these options sound unpalatable? Prefer
something requiring less commitment? You can, if you like, do as most sources
suggest: nothing (or its many tokenistic equivalents). I admit that the options
I offer are for those powerful enough to comprehend and act on the truth. Why?
Because there is so little time left and I have no interest in deceiving people
or treating them as unintelligent and powerless. See ‘Human Extinction by 2026? A
Last Ditch Strategy to Fight for Human Survival’.
Conclusion
Every person on Earth depends directly on
the ocean. It covers 71% of the Earth’s surface and contains about 97% of the
Earth’s water. It generates 50 percent of the oxygen we need and is home to up
to 80 percent of all life.
Yet human activity is destroying it. You
can make choices that make a difference. Or leave it to others.
Biodata: Robert J.
Burrowes has a lifetime commitment to understanding and ending human violence.
He has done extensive research since 1966 in an effort to understand why human
beings are violent and has been a nonviolent activist since 1981. He is the
author of ‘Why Violence?’ His email address is flametree@riseup.net and his website is here.
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