Wednesday, October 30, 2024

 

Scientists say plastic on beaches can now be seen from space



Australian researchers have developed a new method for spotting plastic rubbish on our beaches and successfully field tested it on a remote stretch of coastline



RMIT University

Dr Jenna Guffogg 

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Dr Jenna Guffogg on an Australian beach

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Credit: RMIT University





Australian researchers have developed a new method for spotting plastic rubbish on our beaches and successfully field tested it on a remote stretch of coastline. 

The satellite imagery tool developed by RMIT University scientists picks up differences in how sand, water and plastics reflect light, allowing plastics to be spotted on shorelines from more than 600km above.  

Satellite technology is already used to track the massive amounts of plastic floating around our oceans – from relatively small drifts containing thousands of plastic bottles, bags and fishing nets, up to gigantic floating trash islands like the Great Pacific Garbage Patch, which is three times the size of France. 

However, the satellite technology used to spot plastic floating in water doesn’t work so well in spotting plastic lying on beaches, where it can easily blend in with the sand.  

This latest advance, published in the Marine Pollution Bulletin, means we now have an effective way to spot plastic on beaches, where it can be more easily accessed and removed by clean-up operations. 

Oceans of plastic 

We're currently sending well over 10 million tonnes of plastic trash into our oceans every year. It's estimated that by 2030 that figure could reach 60 million. 

Study lead author, Dr Jenna Guffogg, said plastic on beaches can have severe impacts on wildlife and their habitats, just as it does in open waters. 

“Plastics can be mistaken for food, larger animals become entangled and smaller ones, like hermit crabs, become trapped inside items such as plastic containers,” she said.  

“Remote island beaches have some of the highest recorded densities of plastics in the world, and we’re also seeing increasing volumes of plastics and derelict fishing gear on the remote shorelines of northern Australia.” 

Guffogg said if these plastics are not removed, they inevitably fragment further into micro and nano plastics. 

“While the impacts of these ocean plastics on the environment, fishing and tourism are well documented, methods for measuring the exact scale of the issue or targeting clean-up operations, sometimes most needed in remote locations, have been held back by technological limitations,” she said. 

How it works 

The team’s Beached Plastic Debris Index is what’s known as a spectral index, essentially a mathematical formula that sorts patterns of reflected light collected by satellites as they pass over an area, to reveal what you’re most interested in seeing from the image.  

The remote sensing team at RMIT have developed similar tools for monitoring forests and mapping bushfires from space. 

The Beached Plastic Debris Index is tailored to mapping plastic debris in beach environments using high-definition data from the WorldView-3 satellite, which orbits the earth in line with the sun at an altitude of 617 km.  

To test its performance, 14 plastic targets of around two square meters each were placed on a beach in southern Gippsland, Victoria. 

Each target was made of a different type of plastic and was smaller than the satellite’s pixel size of about 3m2. 

The satellite images using the new index were compared with three existing indices, two of which were designed for detecting plastics on land and one for detecting plastics in aquatic settings. 

The BPDI outperformed all three, with the others either struggling to differentiate plastic-contaminated pixels on the beach or tending to mis-classify shadow and water as plastic. 

Study co-author, Dr Mariela Soto-Berelov, said the enhanced separability of the BPDI against water, in addition to sand, suggests its utility is superior in environments where water pixels and plastic-contaminated pixels are likely to coexist.  

“This is incredibly exciting, as up to now we have not had a tool for detecting plastics in coastal environments from space,” she said. 

“The beauty of satellite imagery is that it can capture large and remote areas at regular intervals.  

“Detection is a key step needed for understanding where plastic debris is accumulating and planning clean-up operations, which aligns with several Sustainable Development Goals, such as Protecting Seas and Oceans.”  

Soto-Berelov said the next step is to test the BPDI’s utility in real life scenarios. 

“We’re looking to partner with organisations on the next step of this research; this is a chance to help us protect delicate beaches from plastic waste,” she said. 

Guffogg led this study as part of her joint PhD research at RMIT in Australia and University of Twente in the Netherlands, and now works in the geospatial mapping industry.  

She was supported by an Australian Government Research Training Program (RTP) scholarship. The Worldview-3 imagery was accessed via DigitalGlobe, a US geospatial imagery vendor. 

Beached Plastic Debris Index; A modern index for detecting plastics on beaches’ by Jenna Guffogg, Mariela Soto-Berelov, Chris Bellman, Simon Jones and Andrew Skidmore is published in Marine Pollution Bulletin, (DOI: 10.1016/j.marpolbul.2024.117124)

A beach full of plastics

Credit

RMIT University

Plastic targets set up to test the new technology

Credit

RMIT University

 

University of Chicago launches groundbreaking new institute to confront climate change



The Institute for Climate and Sustainable Growth will balance the urgency of climate action with society’s need for sustainable growth



University of Chicago





Balancing the urgent need to confront climate change with society’s need for rising living standards and expanded economic growth is the defining challenge of our time. Fossil fuels are the key driver of this challenge. Their low cost makes them the default energy choice to power growth in many settings, yet failure to sharply reduce carbon dioxide emissions from fossil fuel combustion is putting the world on a course for disruptive climate change.

To address this challenge, the University of Chicago on Oct. 30 launched the Institute for Climate and Sustainable Growth, an ambitious effort combining frontier research in economics and climate policy, and key energy and climate technologies, with a pioneering approach to education. The result is a first-of-its-kind institute that will produce new and deeper understandings of the climate challenge as well as practical, effective solutions.

“The University of Chicago is distinctly poised to contribute to the understanding of the challenges of climate and energy, and to offer improved approaches for overcoming these challenges,” said President Paul Alivisatos. “Faculty and students from across our ecosystem have expressed their enthusiasm and commitment to bringing our characteristic UChicago approach to the most difficult problems: asking the hardest questions, taking risks, joining ideas in surprising ways from across disciplines, and bringing rigor to every aspect. This approach will inform an integrated set of new education programs which have the power to shape generations of critical thinkers and thoughtful leaders that is so urgently called for. This is our moment to leverage our history and distinctive strengths to uncover the ways for humanity to achieve sustainable growth while also addressing accelerating climate change impacts.”

The Institute launched with strong momentum, drawing an extraordinary response from donors committed to supporting its full range of research and educational programs. The meaningful investments signal tremendous support for the shared vision of President Alivisatos and the faculty directors. Building on this foundation, the Institute plans to hire 20 new faculty members over the next five years. Faculty searches in the fields of law, political science, economics, materials engineering, and AI are underway—underscoring the Institute’s commitment to bringing a wide range of insights to this deeply interdisciplinary challenge.

“We’re thrilled to launch this new Institute and expand the reach of our faculty’s expertise in critical areas,” Provost Katherine Baicker said. “The Institute’s interdisciplinary, collaborative approach is crucial for addressing the complexities of climate change. It will create a dynamic platform that engages the full breadth of insights across our campus community—from the arts and humanities, to the social sciences, to the biological sciences and beyond. This reflects our commitment as a global research leader to bringing our community’s wide range of knowledge to bear in discovering and driving real-world solutions to the planet’s most pressing problems.”

Michael Greenstone, the Milton Friedman Distinguished Service Professor in Economics, is the Institute’s founding faculty director.

“Families around the world aspire for a better life, and inexpensive energy is key to the growth that unlocks it,” said Greenstone. “The reality is that in many places and settings the least expensive energy options are the fossil fuels that cause climate change. This can put the goals of managing climate change and growth in conflict, and the Institute’s aim is to find ways to balance these two goals, recognizing that both are critical to our well-being.”

The Institute’s research and programming will be driven by three foundational pillars, each major strengths of the University of Chicago. The Energy Policy Institute at the University of Chicago (EPIC) will move into the Institute for Climate and Sustainable Growth, bringing considerable expertise and experience in energy policy and market design on a global scale, with dedicated research programs in India and China for the past 10 and five years, respectively.

Prof. Shirley Meng, a world-leading battery scientist, will lead the Energy Technologies Initiative pillar of the Institute, which, among its efforts, is driving major advancements in energy storage technologies widely regarded as a holy grail of the energy transition. The Initiative originates at the Pritzker School of Molecular Engineering (PME) as part of its ongoing work in energy and sustainability.

Prof. David Keith, who joined UChicago in April 2023, will lead the Institute’s Climate Systems Engineering initiative (CSEi). The initiative will produce new ways of thinking about the risks from more than a century of accumulated emissions, and in the process, launch a new and urgently needed field of study encompassing open-systems carbon removal, solar geoengineering, and local interventions to prevent glacial melting.

On the education front, the Institute announced the creation of the Chicago Curriculum on Climate and Sustainable Growth, which will serve as the foundation for a series of new degree programs at the undergraduate and master’s levels at the University of Chicago. Through a 360-degree approach, the curriculum will expose students to the foundational ideas, tradeoffs, and complexities of the global climate and sustainable growth challenge in a way that no other university globally has to date.

“A game change is needed in the climate fight,” said Greenstone. “One that alters understanding of the climate and growth challenge—not just at the University of Chicago but around the world. This is a once-in-a-generation opportunity to bring the power of the University of Chicago to bear on this challenge. I am deeply honored and excited to lead this new effort.”

The Institute’s distinctive overall approach introduces a wide range of new research and educational programs, which build on a uniquely powerful foundation.

Markets and Policy

Building on UChicago’s renowned history of applying economic thinking to tackle major societal challenges, the Institute will work to characterize the climate and sustainable growth challenge and uncover the policies and markets that will help to find a balance between these goals. This research will include a distinctive focus on the world’s developing and emerging economies, which are expected to account for 80 percent of greenhouse gas emissions over the remainder of the century and where the need for growth is especially acute.

This work will be carried out by EPIC, which has fostered field-defining research—led by more than a dozen leading faculty—for more than a decade. EPIC research covers a wide range of areas, from demonstrating how grid expansion boosts renewables and piloting and scaling the world’s first particulate pollution market in India to developing economic valuations of key species like bats and vultures. In addition, EPIC brings several prominent projects to the Institute, including the Climate Impact Lab and EPIC Clean Air Program, which includes its flagship Air Quality Life Index.

“The balance between climate and growth goals varies around the world, and yet greenhouse gas emissions have the same effect on climate change whether they are emitted in Mumbai, Moscow or Memphis,” said Greenstone. “EPIC will focus on understanding these trade-offs in the world’s key countries and identifying policies and markets that can make the climate and growth challenge easier in them. These efforts will build on the track record of success through EPIC-India and EPIC-China, in addition to our work in the United States and other parts of the world.”

Energy Technologies

Affordable energy storage is often referred to as the holy grail of the clean energy transition—from accelerating the switch to electric vehicles to balancing intermittent renewable electricity sources on the grid. Recognizing this, the Institute’s Energy Technologies Initiative (ETI) will drive major advancements in energy storage technologies through a combination of basic research and industry partnerships.

Researchers at UChicago PME and partners at Argonne National Laboratory collectively make up the nation’s largest cluster of energy technology experts. Argonne is now home to one of just two Department of Energy national battery innovation hubs, the Energy Storage Research Alliance (ESRA), led by Meng, who holds a joint appointment at Argonne.

“The demand for high-performance, low-cost, and sustainable energy storage solutions is on the rise, especially those with potential to deeply decarbonize heavy-duty transportation and the grid,” said Meng. “To achieve this, energy storage technology must reach levels of unprecedented performance, surpassing the capabilities of current lithium-ion technology.”

Meng and her colleagues are working with industry to accelerate translation of the science developed within ETI through the Energy Transition Network (ETN), a recently launched framework led by Meng to engage seamlessly with industry.

“We are building a robust ecosystem to translate critically important science to impact in everyday life.”

Climate Systems Engineering

Guided by UChicago’s core beliefs of free expression and open discourse, the Climate Systems Engineering initiative (CSEi) will explore approaches and technologies that may be needed to manage the greenhouse gases already in the atmosphere, as well as vigorously debate the human and governance challenges surrounding these potential innovations.

Because greenhouse gases take thousands of years to cycle out of the atmosphere, global average temperatures will remain high long after emissions cease. Sea level will continue to rise for centuries as polar ice melts and the heat waves and storms associated with climate change will persist. CSEi is addressing this challenge by exploring technologies to cool the planet through carbon removal and solar geoengineering, and technologies for preventing glacial melting in the intervening years.

Applying insights from systems engineering and climate science, CSEi’s goal is to advance understand of the potential benefits and risks of using these technologies to inform decisionmakers and to educate students who will face the challenges of managing industrial civilization on a fragile planet. The mix of research topics will evolve as the initiative matures driven by the interests of collaborating researchers and by policy-relevant questions posed by governments and civil society, spanning scientific topics and associated dimensions such as social context, governance, risk, benefit, and ethics.

“The goal of research on climate systems engineering is to learn more, to understand better which of these techniques might work, which might not work, what their risks are, how we could reduce those risks, and how we can inform sensible public policy decisions about these complicated technologies,” said Keith. “Our pursuit of knowledge right now does not commit us to a course of action but gives our children more information with which to make these tough decisions down the line.”

A Rich Climate Ecosystem

The climate and sustainable growth challenge is ever evolving, requiring new ideas, understandings and solutions. Therefore, the Institute will relentlessly work to support the UChicago community as they develop new areas of inquiry, including by seeding new research initiatives.

Reflecting the importance of this part its mission, the Institute is today announcing 11 venture and seed fund recipients. Grant recipients are leading groundbreaking research on everything from dramatically improved weather forecasts that will support climate adaptation to using AI to develop advanced materials for energy technologies. (Learn more about the awardees here).

Additionally, the Institute will create new programs to bridge disciplinary divides, foster collaboration, and support students. These include visiting and postdoctoral scholar programs, support for academic workshops and conferences, and a host of opportunities for students such as funding for research assistantships and internships, climate career treks, and much more.

Chicago Curriculum on Climate and Sustainable Growth

The Institute is introducing the Chicago Curriculum on Climate and Sustainable Growth. The Chicago Curriculum will provide a 360-degree education on the climate and sustainable growth challenge. It will require students to learn about the science of climate change, the economics and policy options, the technologies that are available today and might be tomorrow, the politics, how philosophers have thought about the relationship between humankind and the planet, and more.

A cornerstone of the curriculum will be an experiential learning course that brings students to rural India or sub-Saharan Africa to experience life with little electricity, an energy boom town to see the local economic benefits of energy production, New York City to meet with capital allocators who are ruthlessly focused on private returns to their investments, or national capitals around the world to meet with policymakers. This experiential course will challenge students to hold multiple competing thoughts at once and use their new interdisciplinary tools to understand them.

“To confront one of the greatest challenges of this generation, we must train the citizens, leaders and workforce of tomorrow to have a comprehensive understanding of the problem and personally experience it and its many nuances from many different viewpoints,” said David Weisbach, the Walter J. Blum Professor of Law, who is leading the efforts to create the curriculum. “Only armed with this foundational knowledge and authentic understanding can this next generation succeed in confronting the climate challenge in a way my generation was never able.”

In addition to completing these classes, students will specialize in a particular area of interest (policy or data science, for example). The goal for students is to develop a diverse knowledge base so they will be able to see the climate challenge from its many angles, appreciate the societal and economic trade-offs, and develop an understanding of what is required economically, technically, and politically to confront it. The Institute looks to sponsor an interdisciplinary undergraduate major in addition to master’s programs.

“Throughout its history, the University of Chicago has revolutionized the world of general education, produced field-defining breakthroughs and introduced entirely new disciplines and new ways of applying existing disciplines to novel problems,” Alivisatos said. “From founding the fields of astrophysics, sociology, price theory economics, to newer fields like molecular engineering, University of Chicago faculty have laid the groundwork of modern thought to solve some of society’s greatest challenges and brought those advances out of academia to make lasting societal change. It is this unique legacy that sets the University of Chicago apart and that will allow this new Institute to break down barriers to progress on climate change and create pathways for solutions where none were thought to exist.”

Learn more at the Institute for Climate and Sustainable Growth website.

 

A review on carbon emissions of global shipping




Compuscript Ltd
FIG 1 

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Fig. 1 Global CO2 emissions from shipping 2000–2021. The lines represent historical CO2 emissions (Mt yr−1) from the emission inventories listed in Table 1, and the bars represent the ratios of variances between above emission inventories to their average values

 

 


 

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https://doi.org/10.1007/s44312-023-00001-2

Announcing a new publication for Marine Development journal. In this research article the authors Shiyu Deng and Zhifu Mi from Bartlett School of Sustainable Construction, University College London, London, United Kingdom review carbon emissions from global shipping.

Carbon dioxide (CO2) emissions from shipping account for about 3% of total annual anthropocentric CO2 emissions and are assumed to increase markedly without mitigation measures. Following the introduction of the net-zero emissions target, the large uncertainties and challenges of a low-carbon transition in the shipping industry have raised concerns in the scientific community.

 

The authors of this article present a compressive review of CO2 emission inventories for the shipping industry, examines the historical CO2 emission trends and associated estimation uncertainties due to different methodologies, and further discusses the CO2 reduction measures and potential published in the literature.

 

The findings show that there are significant differences in historical CO2 emission trends due to uncertainties in estimation methods and the scope of the study. In contrast, IMO ship-based emission inventory estimates are higher, while CAMS-GLOB-SHIP v3.1 provides high-resolution information. The bottom-up life cycle approach is more favorable for using geospatial information to monitor and manage emission reductions across the industry.

 

CO2 emissions from global shipping returned to prepandemic levels by 2021, which indicate that it is urgent to improve energy efficiency so that seaborne trade can be decoupled from carbon emissions, thereby achieving a net zero carbon emissions target for the shipping industry. For mitigating CO2 emissions from shipping, emission source control and emission process control measures could offer 50–60% reduction potential, leaving 40–50% abatement responsibility to be shouldered by zero-carbon fuels, CCUS, and out-of-industry transfers. In detail, increasing the use of shore power and accelerating the piloting of electric boats are vital for medium- and long-term adoption of new energy. The increase in the proportion of electric ships is supposed to contribute the most to COemission reduction, followed by ship enlargement, ship elimination, shore power use and operational energy efficiency.

 

In addition to the widely discussed economic and technological feasibility, net-zero emissions in the shipping industry still face many constraints and challenges. One of the challenges is to avoid the side effects of decarbonization measures, such as fugitive methane from LNG utilization and PAHs exhaustion from CCUS. Another challenge is to guarantee navigation safety when considering zero-carbon but chemically unstable fuels. An international standard and framework for the use of hydrogen and ammonia require to be developed to provide guidance on how to properly store and burn these alternative fuels. Meanwhile, the adoption of global ETs should safeguard the wellbeing of the crew, and the free emissions quota percentage (FEQP) and the carbon trading price (CTP), international management should be further discussed. The importance of international cooperation for green corridors should also be further emphasized, and more coastal countries should be called upon to participate in the co-construction of clean power berths.

 

Article reference: Deng, S., Mi, Z. A review on carbon emissions of global shipping. Mar Dev 1, 4 (2023). https://doi.org/10.1007/s44312-023-00001-2

 

Keywords: Shipping emissions, Carbon dioxide, Abatement measures, Net-zero target

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Marine Development aims to publish research papers in all relevant disciplines related to the ocean and the sea. Its scope spans diverse domains, including but not limited to marine resource management, marine environmental conservation, marine biodiversity, fisheries management, marine energy, marine policy, and international maritime law. The journal particularly values research that explores the complex links between marine issues and broader global challenges, such as climate change, sustainable economic development, and international cooperation. As a platform for interdisciplinary knowledge exchange, the journal will enable scholars to communicate their research and promote interdisciplinary research that advances our understanding of marine issues. It welcomes original research with a multidisciplinary focus and also encourages review articles that highlight the latest research trends and those with significant global impacts.

 

For more information, please visit https://link.springer.com/journal/44312.

Editorial Board: https://link.springer.com/journal/44312/editorial-board

MD is available on SpringerLink https://link.springer.com/journal/44312).

 

Submissions to MD may be made using ScholarOne ManuscriptsTM (https://www.editorialmanager.com/made/default.aspx)

 

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ISSN 3004-832X

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Three pathways to achieve global climate and sustainable development goals




Potsdam Institute for Climate Impact Research (PIK)




"Sustainable development pathways are strategies that prevent dangerous climate change while at the same time moving towards a world that allows people to prosper on a healthy planet,” explains Bjoern Soergel, scientist at the Potsdam Institute for Climate Impact Research PIK and lead author of the study published in Environmental Research Letters. This is the essence of the 17 SDGs agreed by the United Nations in 2015. “Our analysis shows that all three sustainable development pathways are far more effective than our current ‘business as usual’. They drive substantial progress towards the SDGs, for example reducing the number of people in extreme poverty by two thirds until 2030 and to virtually zero in 2050. They also curb global warming and avert further degradation of the environment. Importantly, they also avoid the unintended side effects of simplistic climate protection strategies, such as relying heavily on bioenergy or carbon capture and storage without taking into account potential conflicts with food production or public acceptance.”

Three powerful ways to accelerate sustainable development

In the study, the scientists look at three possible pathways to achieve the 17 sustainable development goals used by governments, companies, and NGOs worldwide to guide action towards a sustainable and just future. The study is the first to systematically compare such different sustainable development pathways, analysing results from four models: two integrated assessment models of the global energy, economy, land and climate system and two models focused on the global buildings and materials sectors, respectively.

“All scenarios we looked into share the same set of goals, but the question is how to get there,” explains Isabelle Weindl, PIK scientist and co-author of the study. She points out that all the pathways examined in the study stand out in their own way. “For example, the sustainable lifestyle pathway includes a rapid shift towards a flexitarian, largely plant-based nutrition, which is known to also have substantial benefits for human health.” This pathway would further include a reduction of global final energy use per capita of around 40% by 2050, with wealthier countries contributing the largest share to decrease energy inequality. Such changes might pose challenges in terms of how realistic they are for people to adopt, the researchers point out. However, they would also come with large benefits, as Soergel adds: “The sustainable lifestyle pathway has the lowest reliance on unproven technologies and the most positive outcomes for biodiversity and climate protection.”

The other pathways foresee a more gradual change in diets and energy consumption, but assume more rapid innovation in green technologies or greater orchestration of system-wide changes by governments, which each comes with their own challenges. “Even though the pathways differ in what they emphasize, they all can deliver”, says Elmar Kriegler, Head of the research department Transformation Pathways at PIK and co-author of the study. “This is important because the path to sustainable development is often narrowed to individual worldviews, making it more difficult to find common ground to embark on this journey. ” He concludes: “If we stick to our current trajectory, none of the SDGs will be achieved. By 2030, 660 million people could still be living in extreme poverty, and environmental crises like biodiversity loss and global warming will only get worse. So it is clear we must act now. We can still choose which sustainable path to pursue, but ignoring them is no longer an option.”

The publication is accompanied by an interactive web tool for exploration, visualization and download of the scenario data: https://shape.apps.ece.iiasa.ac.at/


Article: Bjoern Soergel, Sebastian Rauner, Vassilis Daioglou, Isabelle Weindl, Alessio Mastrucci, Fabio Carrer, Jarmo Kikstra, Geanderson Ambrósio, Ana Paula Dutra Aguiar, Lavinia Baumstark, Benjamin Leon Bodirsky, Astrid Bos, Jan Philipp Dietrich, Alois Dirnaichner, Jonathan C Doelman, Robin Hasse, Ariel Hernandez, Johanna Hoppe, Florian Humpenöder, Gabriela Ileana Iacobut, Dorothee Keppler, Johannes Koch, Gunnar Luderer, Hermann Lotze-Campen, Michaja Pehl, Miguel Poblete-Cazenave, Alexander Popp, Merle Remy, Willem-Jan van Zeist, Sarah Cornell, Ines Dombrowsky, Edgar G Hertwich, Falk Schmidt, Bas van Ruijven, Detlef van Vuuren, and Elmar Kriegler (2024): Global burned area increasingly explained by climate change. Environmental Research Letters. [DOI: 10.1088/1748-9326/ad80af]

 

Tattoos to confront the terror of death



The emergence of memorial body art following the October 7 massacre and ensuing war aligns with a prominent psychological theory and sheds light on how individuals cope with trauma and find meaning through tattoos, Bar-Ilan University study finds



Bar-Ilan University





The October 7, 2023 Hamas attacks on Israel resulted in widespread trauma, impacting not only the direct victims but also the broader population. Many experienced posttraumatic symptoms. This collective trauma blurred the lines between witnesses and victims, leading to a shared experience of pain and grief across Israeli society.

In the wake of these attacks, a notable phenomenon emerged: memorial tattoos. Defined as body art that commemorates deceased loved ones and expresses a more general experience of loss and grief, on one hand, and hope and empowerment, on the other, memorial tattoos serve as tangible symbols of loss and emotional connections. They reflect personal narratives while also representing collective trauma experienced by the entire nation.

A new study by Dr. Ayelet Oreg, Dr. Hilit Erel-Brodsky and Prof. Orit Taubman – Ben-Ari from Bar-Ilan University’s Weisfeld School of Social Work uses Terror Management Theory (TMT, Solomon et al., 1991) to explore the rise of memorial tattoos in Israel following the attacks. TMT posits that human awareness of death creates existential anxiety, which people manage through cultural worldviews, self-esteem, and social connections.

The researchers analyzed data from public Facebook groups and Instagram accounts of tattoo artists, collecting 250 images of memorial tattoos. They used a combination of digital ethnography and visual data analysis to explore war-related tattoos as testimonials of experiences from the October 7 massacre and the subsequent war, focusing on how the tattoos serve as expressions of collective grief and cultural identity, and may assist individuals to contend with the trauma and the existential terror of death.

The analysis of the 250 memorial tattoo photos yielded three main themes:

  1. Memorial tattoos as a means for validating cultural worldviews: Many tattoos incorporated Holocaust symbols and Israeli national imagery, reflecting a reaction to the trauma of the attacks and a connection to collective historical memories.

Holocaust symbols

These memorial tattoos showcase the collective memory of Israeli Jews regarding the Holocaust. The tattoos feature symbols like the yellow star and the Star of David, accompanied by the phrase “never again,” linking past trauma to present experiences. The date 7.10.23, which marks a recent tragedy, is inscribed on many arms and is reminiscent of the identification numbers imprinted on the arms of Jews during the Holocaust. Additional symbols, such as tefillin (phylacteries), a set of small black leather boxes with leather straps containing scrolls of parchment inscribed with verses from the Torah, and barbed wire, strengthen the emotional connection between Holocaust trauma and recent loss. These tattoos affirm a commitment to Judaism and reflect collective religious beliefs.

Tattoos of Israeli-Jewish nationalist symbols

These tattoos, particularly maps of Israel and representations of lions and lionesses, evoke themes of strength, courage, and connection to the tribe of Judah, as lions symbolize both the tribe and the Israel Defense Forces (IDF). In the aftermath of the October massacre, such tattoos reflect a nationalistic worldview defense, emphasizing emotional ties to the land.

One notable tattoo depicts a hand emerging from a grave clutching the Israeli flag, symbolizing resilience and the bond between past and present. Other tattoos express love and protection of the land, often accompanied by biblical references and poignant lyrics, such as "I have no other land,” reflecting collective grief and memory.

Additionally, the tattoos are a means for individuals to boost self-esteem, particularly through personal narratives of battle participation, resilience, and national identity. These tattoos serve to memorialize personal experiences and roles in conflict, reinforcing a sense of self-worth amid collective trauma.

  1. Memorial tattoos as a means of strengthening self-esteem: The tattoos acted as affirmations of personal and cultural identity, helping individuals cope with existential anxiety in the wake of violence.

Military memorial tattoos

These tattoos commemorate experiences from battles and the tragic Nova music festival massacre.

One tattoo depicts a bomb explosion with destroyed buildings and 11 angels representing the soldiers killed in that battle, alongside the name "NOVA," featuring a broken heart symbolizing loss. Another tattoo shows a wolf and hints at tunnels beneath the destruction, while the third features a Merkava tank and the Israeli flag. These tattoos encapsulate personal war memories for the soldiers who adorn them.

Additionally, many tattoos emerged among survivors and victims' relatives following the Nova massacre, characterized by red and black colors reminiscent of the festival logo. Common inscriptions like "all of us" and "we shall dance again" highlight unity, resilience, and a determination to reclaim joy after tragedy. These tattoos foster a sense of belonging and pride among those affected.

Self-esteem tattoos

These tattoos serve as public affirmations of identity and self-worth. Examples include expressions of Jewish identity and statements related to October 7, emphasizing a connection to community and resilience.

One tattoo transforms "impossible" to "possible," symbolizing strength and survival, while another, featuring the phrase "release our hostages" along with a quote from Jewish visionary Theodore Herzl, reflects a belief in overcoming challenges. A tattoo that inscribes "home" alongside a heartbeat graphic conveys resilience and connection to one’s homeland.

  1. Memorial tattoos as a reflection of the desire to achieve proximity to deceased loved ones and places affected by the war: Tattoos symbolized a longing to connect with deceased loved ones and places impacted by the conflict.

Memorial tattoos honoring and commemorating deceased loved ones

These tattoos provide their bearers with a sense of closeness to their loved ones, offering comfort and strength in facing the anxieties of death and mourning.

Tattoo images include a lifelike representation of a fallen soldier and a poignant tribute, for example, from a brother to his deceased sibling featuring the phrase "Always with me." Other tattoos portray the departed as angels, and one illustrates a scene of companionship with the inscription "never alone," symbolizing a perpetual bond between the living and the deceased.

Memorial tattoos commemorating places or nature

These images emphasize a connection to specific places in Israel where the atrocities were suffered. One tattoo represents a police station in Sderot, which was heavily damaged and became a site of loss, while another symbolizes Kibbutz Kfar Aza, where many residents were killed or abducted. These tattoos serve as emotional reminders of cherished memories tied to these locations.

Additionally, wheat tattoos symbolize renewal and life, referencing Israel's agricultural heritage and the resilience captured in a poignant war song about the Yom Kippur War. Red poppies and anemones are also highlighted, representing endurance amidst adversity and connecting to the trauma of the recent conflict in a region known for an annual festival showcasing its fields bursting with these blooming red flowers. These tattoos reflect a desire to maintain a bond with nature and the region's history, encapsulating themes of hope and survival.

“Following traumatic events, such as the 9/11 attacks in the United States, people often express nationalism through symbols, such as memorial tattoos, which serve as coping mechanisms to mitigate the extensive anxiety,” say Dr. Oreg, Dr. Erel-Brodsky and Prof. Taubman – Ben-Ari, who led the study.

This study of the October 7 onslaught, published in the journal Death Studies, offers insights into how individuals cope with trauma and find meaning through tattoos, using TMT as a theoretical framework, ultimately contributing to the understanding of psychological resilience in the face of terror. By exploring how these tattoos function as a means of processing trauma, the study furthers understanding of the broader implications of TMT in real-world contexts and can contribute to the development of strategies for mitigating the psychological impact of terrorism and mass crises.

 

The ‘urban revolution’ was slow in Bronze Age Arabia



Ancient town of al-Natah, occupied 2400-1500BCE, was an early transitional stage between pastoralism and complex urban settlements




PLOS

A Bronze Age town in the Khaybar walled oasis: Debating early urbanization in Northwestern Arabia 

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3D virtual reconstruction of the Bronze Age site of al-Natah. Reprinted under a CC BY license, with permission from AFALULA-RCU-CNRS, 2024.

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Credit: Charloux et al., 2024, PLOS ONE, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)




Settlements in northern Arabia were in a transitional stage of urbanization during the third to second millennium BCE, according to a study published October 30, 2024 in the open-access journal PLOS ONE by Guillaume Charloux of the French National Center for Scientific Research, Paris and colleagues.

The development of large urban settlements was a major step in the evolution of human civilization. This process of urbanization has proven difficult to study in northern Arabia, due in part to a lack of well-preserved archaeological sites in the region compared with better understood areas such as the Levant and Mesopotamia. In recent decades, however, excavations have uncovered exceptional sites in northern Arabia that provide insights into the early stages of urbanization.

In this study, Charloux and colleagues provide a detailed description of the Bronze Age town of al-Natah in Medinah province, occupied from around 2400-1500BCE. The town covered approximately 1.5 hectares, including a central district and nearby residential district surrounded by protective ramparts. A cluster of graves represents a necropolis, with burial practices indicating some degree of social stratification. The authors estimate the town was home to around 500 residents. The size and organization of al-Natah is similar to other sites of similar age in northern Arabia, but these sites are smaller and less socio-politically complex than contemporary sites in the Levant and Mesopotamia.

The researchers suggest that al-Natah represents a state of ‘low urbanization,’ a transitional stage between mobile pastoralism and complex urban settlements. Archaeological evidence so far indicates that northern Arabia was dotted with small fortified towns during the Early-Middle Bronze Age, at a time when other regions exhibited later stages of urbanization. Further excavations across Arabia will provide more details about the timing of this transition and the accompanying changes in societal structure and architecture.

The authors add: “For the first time in north-western Arabia, a small Bronze Age town (c. 2400-1300 BCE) connected to a vast network of ramparts has been discovered by archaeologists, raising questions about the early development of local urbanism.”

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In your coverage please use this URL to provide access to the freely available article in PLOS ONEhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309963

Citation: Charloux G, Shabo S, Depreux B, Colin S, Guadagnini K, Guermont F, et al. (2024) A Bronze Age town in the Khaybar walled oasis: Debating early urbanization in Northwestern Arabia. PLoS ONE 19(10): e0309963. https://doi.org/10.1371/journal.pone.0309963

Author Countries: France, Saudi Arabia

Funding: GC, RC, MM This work was funded by the French Agency for AlUla Development (AFALULA) https://www.afalula.com/. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.