Deceased post-hatchling loggerhead sea turtle next to plastic pieces found in its stomach and intestines. Gumbo Limbo Nature Center, CC BY-ND
Plastic pollution has been found in practically every environment on the planet, with especially severe effects on ocean life. Plastic waste harms marine life in many ways – most notably, when animals become entangled in it or consume it.
However, it’s becoming increasingly hard to ignore evidence that plastic pollution poses a growing, hidden threat to the health of endangered sea turtles, particularly our youngest patients. In a newly published study, we describe how we examined 42 post-hatchling loggerhead sea turtles that stranded on beaches in Northeast Florida. We found that almost all of them had ingested plastic in large quantities.
An ocean of plastic
Ocean plastic pollution originates mostly from land-based sources, such as landfills and manufacturing plants. One recent study estimates that winds carry 200,000 tons of tiny plastic particles from degraded tires alone into the oceans every year.
Plastics are extremely durable, even in salt water. Materials that were made in the 1950s, when plastic mass production began, are still persisting and accumulating in the oceans. Eventually these objects disintegrate into smaller fragments, but they may not break down into their chemical components for centuries.
Overall, some 11 million tons of plastic enter the ocean each year. This amount is projected to grow to 29 million tons by 2040.
Successfully rehabilitated hatchling loggerhead sea turtles being released back into the Atlantic Ocean. Jessica Farrell, CC BY-ND
A microplastic diet
Many forms of plastic threaten marine life. Sea turtles commonly mistake floating bags and balloons for their jellyfish prey. Social media channels are replete with videos and images of sea turtles with plastic straws stuck in their nostrils, killed in plastic-induced mass mortality events, or dying after ingesting hundreds of plastic fragments.
So far, however, scientists don’t know a lot about the prevalence and health effects of plastic ingestion in vulnerable young sea turtles. In our study, we sought to measure how much plastic was ingested by post-hatchling washback sea turtles admitted to our rehabilitation hospital.
Post-hatchling washbacks are recently hatched baby turtles that successfully travel from their nesting beaches out to the open ocean and start to feed, but are then washed back to shore due to strong winds or ill health. This is a crucial life stage: Turtles need to feed to recover from their frenzied swim to feeding grounds hundreds of miles offshore. Feeding well also helps them grow large enough to avoid most predators.
Post-hatchling sea turtle being treated at Gumbo Limbo Nature Center. Gumbo Limbo Nature Center, CC BY-ND
We examined 42 dead washbacks, and found that 39 of them, or 93%, had ingested plastic – often in startling quantities. A majority of it was hard fragments, most commonly colored white.
One turtle that weighed 48 grams or 1.6 ounces – roughly equivalent to 16 pennies – had ingested 287 plastic pieces. Another hatchling that weighed just 27 grams, or less than one ounce, had ingested 119 separate pieces of plastic that totaled 1.23% of its body weight. The smallest turtle in our study, with a shell just 4.6 centimeters (1.8 inches) long, had ingested a piece of plastic one-fourth the length of its shell.
Consuming such large quantities of plastic increases the likelihood that broken-down plastic nanoparticles or chemicals that leach from them will enter turtles’ bloodstreams, with unknown health effects. Ingested plastic can also block turtles’ stomachs or intestines. At a minimum, it limits the amount of space that’s physically available for consuming and digesting genuine prey that they need to survive and grow.
Turtles at this life stage live at the ocean’s surface, sheltering in floating mats of seaweed, where they feed on invertebrate prey such as zooplankton. These floating seaweed mats gather in the Atlantic, in an area known as the Sargasso Sea, which is bounded by four major ocean currents and covers much of the central Atlantic Ocean. The area is heavily polluted with plastic, as both seaweed and plastic travel on and are concentrated by the same ocean currents. Our study suggests that these baby turtles are mistakenly feeding on plastic floating in and around the seaweed.
The Sargasso Sea is an important feeding ground for immature Atlantic sea turtles, but the same currents that concentrate seaweed there also carry drifting plastic trash. University of Florida, CC BY-ND
Post-hatchling sea turtles are young and need to feed and grow rapidly. This means they are particularly at risk from the harmful consequences of ingesting plastic. We find it especially troubling that almost all of the animals we assessed had ingested plastic in such large quantities. Plastic pollution is only one of many human-related threats that these charismatic and endangered creatures face at sea.
Stemming the plastic tsunami
Since plastic persists for hundreds of years in the environment, clearing it from the oceans will require ingenious cleanup technologies, as well as lower-tech beach and shore cleanups. But in our view, the top priority should be curbing the rampant flow of plastic that is swamping oceans and coasts.
Earth’s ecosystems, especially the oceans, are interconnected, so reducing plastic waste will require global solutions. They include improving methods for recycling plastics; developing bio-based plastics; banning single-use plastic items in favor of more sustainable or reusable alternatives; and reducing shipment of plastic waste abroad to countries with lax regulatory regimes, from where it is more likely to enter the environment.
Our observations in post-hatchling turtles are part of a growing body of research showing how plastic pollution is harming wildlife. We believe it is time for humanity to face up to its addiction to plastic, before we find ourselves wading through swathes of plastic debris and wondering what went wrong.
For International Orangutan Day, Mongabay spoke with Leif Cocks, founder and president of The Orangutan Project, which seeks to protect the endangered orange-haired primates and their rapidly disappearing habitats in Southeast Asia.
All three species of orangutans — Sumatran (Pongo abelii), Bornean (P. pygmaeus) and Tapanuli (P. tapanuliensis) are one step away from extinction.
Deforestation is the biggest threat the primates face, and at the moment most conservation efforts have only been able to slow forest loss, not turn the tide around, Leif told Mongabay.
Oil palm plantations replacing primary rainforests is a major problem in Malaysia and Indonesia, but Cocks says simply banning these plantations is not the answer; instead, he advocates for replacing exploitative production systems with those that recognize the services that these forests provide to the local communities and building on that.
To some humans, the idea of treating an orangutan as a person is absurd. For Leif Cocks, spending billions of dollars to find life on Mars while living beings are driven to extinction on Earth is what is truly incomprehensible.
Cocks, the founder and president of The Orangutan Project, spoke to Mongabay ahead of International Orangutan Day on Aug. 19. From his time as a zookeeper in Perth to his years mingling with the orange-haired primates in Indonesia’s rainforests, his belief in their sentience has only deepened. In 2015, he took the stand at an Argentinian court to support treating an orangutan named Sandra as a person. The court agreed, recognizing Sandra’s rights to life, freedom and to be kept safe from harm.
However, for Sandra’s peers in the wild, their very right to exist remains in jeopardy. All three species of orangutans — Sumatran (Pongo abelii), Bornean (P. pygmaeus) and Tapanuli (P. tapanuliensis) — are critically endangered, or just one step away from extinction. There are fewer than 800 Tapanuli orangutans in the world, found in an area about the size of Los Angeles.
Orangutan in Malay means “person of the forest.” But the forests they call home in Southeast Asia are being hacked down incessantly. Bornean orangutans are native to the island of Borneo, which is divided between Malaysia, Indonesia and Brunei. Sumatran and Tapanuli orangutans live on the neighboring Indonesian island of Sumatra. In 2019, 324,000 hectares (801,000 acres) of primary forest was destroyed in Indonesia, much of it cleared to make way for palm plantations. Deforestation is the biggest threat the primates face, Leif told Mongabay.
Baby orangutans are frequently kidnapped to be sold as pets. In the process, many are orphaned, depriving them of a necessary initiation into the wild. The mother-child bond is a pillar of orangutan society. Young ones spend three to four years learning the ropes from their mother. Like humans, orangutans are known to be self-aware, able to recognize their own face in a mirror. Where they outdo humans is in their ability to move their legs like humans can only move their arms. They also sport opposable thumbs on their feet that allow them to latch onto branches in a signature spread-eagled fashion. They are true acrobats of the treetops, where they spend most of their time, nesting in beds of branches and leaves, safe from predators like mighty tigers, lithe leopards and slithery crocodiles that still roam the rainforests of the Greater Sunda Islands.
Below are excerpts from a conversation with Cocks, condensed and edited for clarity.
Mongabay: Do you remember the first time you came across an orangutan?
Leif Cocks: I was brought up in Southeast Asia and spent my early years in Hong Kong. Back in the ’60s, it was common for wild animals to be kept as pets in Asia, I remember seeing people with pet orangutans. But the first time I got to know orangutans in a deeper sense was while working with 15 of them at a zoo in Perth.
From my perspective, orangutans are persons, self-aware beings with feelings, hopes and aspirations for the future, anxieties about the past. Apart from it being an environmental and economic catastrophe that we are destroying their rainforest home, they deserve not to be killed and destroyed and driven to extinction in the most horrific ways we can imagine. It became my life’s work to save them.
What do you think the relationship between humans and orangutans should be? How can the interests of both be served?
Both interests would be best served if all orangutans live free in wild and secure habitats. The best situation for orangutans is also the best-case scenario for us because the rainforest mitigates global warming, creates rain and provides regular water supply and environmental services that allow agriculture to prosper. By preserving orangutans and their rainforest home, we not only do what is the best thing for them, but we also provide the best sustainable future, both environmentally and economically, for the local communities and the entire planet.
What are the biggest threats to the survival of orangutans today?
It is unsustainable agricultural practice that is the biggest challenge that orangutans face. There are other significant factors too. But the disappearance of habitat, the permanent conversion of their rainforest home into unsustainable monocultures is the biggest problem. Illegal logging and illegal poaching are significant too, but once the rainforest is gone, it’s gone. There’s no hope for recovery.
Do you believe that oil palm plantations are viewed with the same skepticism by local people as they are by some Western observers?
It is probably about education and a sense of understanding. Because all monocultures are unsustainable by their very nature. Monocultures will destroy the environment that they’re in. That’s just science. They are very good at doing two things: squeezing the profit from many years into a few short years before they destroy the habitat, and reducing the profit from the many to the few.
Polyculture and agriculture, which includes mixed plantations with natural vegetation, can be sustainable, and provide maximum long-term income to the maximum number of people. We have a choice. Do we want a few people to get very rich quickly? Or do we want agriculture that supports economies that maximize sustainable profit for the maximum number of people?
Forest cleared to make way for a palm oil plantation in Indonesia. Image by Rhett A. Butler/Mongabay
You have spoken about how we are passing on the true cost of production to people who can’t afford to pay for this kind of economic activity. Why do you say that?
For example, if there’s a rainforest and the local community is making a living off the rainforest. They gain timber products, and their economy is based on the rainforest. But it’s also doing other things, what we call the environmental services. The rainforest is like a big sponge; when it rains, the water is absorbed, and when it’s not raining the water is let go. In a rainforest, you have rivers that flow year-round despite rainfall being intermittent.
Destruction of their habitat is the greatest threat facing these great apes, according to Cocks. Image courtesy: The Orangutan Project.
You take the rainforest away, and you put a palm oil plantation there, you have a flood that destroys the village, and then you have droughts that destroy crops. It increases the temperature in the local area, which can lead to more crops failing. The rainforest harbors predators that keep pest species under control. So all these environmental services that the rainforest provided are taken away, and the profits go to the person who put the plantation there. In the big picture, destruction of rainforest causes more global warming than all the transport systems in the world combined. It’s passing a financial cost to future generations. So, what they’ve done is they have passed the true cost to the powerless.
Orangutan on a tree. Photo by Dawn Armfield on Unsplash.
How does The Orangutan Project protect orangutans and their habitats?
It is a multifaceted project with many partners. Our vision is to save up to eight complete ecosystems of the right type, shape and size of rainforest where orangutans can survive with the other megafauna like tigers, tapirs, monkeys and elephants, survive the extinction crisis. We are supporting companies and foundations to get the land and manage it and piece together functioning ecosystems.
We’re also working with the local communities to develop the agricultural systems that I mentioned before like dragon’s blood, a dye derived from vines that grow underneath the rainforest canopy, vanilla production and honey production. These are a couple of examples of agricultural systems that can be created under the rainforest canopy with the local communities. We have shown that within seven to 10 years, we can leave these viable, functioning ecosystems not only environmentally sustainable but economically self-sufficient. The local communities get wealthy and prosper. And there’s enough surplus money to pay for the protection and security of the ecosystem.
Is there a successful approach that you would like to highlight either from within your organization or from outside?
The first thing I have to say is simplistic solutions are great for marketing and fundraising, but they don’t really work in the real world. Let’s say we say “let’s ban palm oil.” That seems good. Like you see a rainforest, and then it disappears, and a palm oil plantation is now there. So the logical conclusion would be if we stopped palm oil, we will stop the rainforest from disappearing. But it doesn’t really address the issue. The person destroying the forest isn’t a palm oil person; he is a person seeking to make money. The trees are worth a lot of money. They’ll destroy the rainforest just for the value of the trees, and there is more than one unsustainable form of monoculture that can replace the rainforest.
So let’s say you weren’t allowed to plant palm, you can put paper on it, you could put a rubber plantation there, you can put a coconut plantation there. You may not make as much money, but it is still profitable, still worth destroying the rainforest. If you address one commodity, you’re not going to make a meaningful change because you’re not really affecting the driver.
People want me to say, “look, this community education program achieved great things,” or “the rangers have achieved great things.” But to have a meaningful impact, it’s always a lot of different things in the right dosage, with many partners putting their skills together.
If somebody wanted to look for examples where this multisectoral approach is working, where should they look?
In general, at least for orangutans, it is hard to pick out, because we’re losing at the moment. Even the well-run projects are reducing habitat loss. So in the next 10 years, we are really in the process of having to go from reducing the rate of destruction to stopping it and expanding reforestation and protection. Some people are doing some fantastic work, but once you look into it, they’re still losing, they’re just losing less. We really haven’t turned that around.
Do you have a wish list of three things that you’d want done immediately to be able to save the orangutans and their habitats?
I think one is funding, that seems to be the most limiting factor. Not enough money to do the work. Number two is removing special interests from political decision-making. This is not unique to Indonesia and Malaysia and the orangutan world. Businesses donate and influence a government to make decisions that benefit them at the expense of decisions that may benefit the entire community or country.
The third would be developing economic systems where the true cost of production can’t be passed on to the powerless. So the costs of environmental services that are lost in rainforest destruction are paid by taxes, or given to the local community, which have lost those services.
Has COVID-19 made it more challenging to do the work you do?
In the short term, it has devastated our funding. Because as people lose their jobs and feel threatened, they are less giving. People have taken the opportunity at the moment to increase poaching, increase illegal logging. The immediate short-term effect is reducing our ability to affect change from lack of money and increasing the pressure on the forests.
The long-term effect is now unknown because there’s lots of special interest groups who are trying to make the COVID-19 recovery about benefiting a few and keeping the old status quo going. But there is also at the same time a movement for a “green recovery,” this opportunity to build a better, fairer world and a sustainable world for our grandchildren. Whether we are going to go down the dark road, increasingly right-wing, increasingly nationalist, selling off more opportunities to exploitative industries, or do we move to a fairer world and a greener world? That’s the greatest challenge of our time.
Malavika Vyawahare is a staff writer for Mongabay. Find her on Twitter: @MalavikaVy
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Global Voices, through its Rising Voices initiative, with the support of the Canadian Embassy in Mexico, presents a series of online conversations focusing on how indigenous communities in Mexico and Canada have been adopting technology and the internet as tools to promote and revitalize their native languages benefitting and impacting a new generation of potential speakers. These conversations will be an opportunity to engage with key language activists and advocates from Mexican indigenous and Canadian First Nations communities who have been utilizing the internet, digital media, and technology to promote and revitalize their languages. The conversations will also highlight the possibilities for cross-regional learning and exchange.
At the recent UNESCO meeting in Mexico City to kick off planning for the International Decade of Indigenous Languages, one of the working groups focused on the role of digital technologies and indigenous media in the campaign. This theme was also echoed throughout the proceedings in discussions about the importance of reaching and involving young people, a key ingredient in language vitality.
Language digital activism has been playing an increasingly important role in the overall strategy of language revitalization. Young people have been employing digital tools and taking do-it-yourself approaches to creating content in their languages and outreach to others. Resources such as digital language activism toolkit in development is one such approach to building capacity for young leaders to play a central role during this next decade.
With approximately 18 months to go before the start of the International Decade and the continued focus on the potential of digital technologies and the internet, what are the strategies needed to take things to the next level? How can language advocates partner successfully with policymakers to make a meaningful impact?
