Awareness of, and debate about, harassment, assault, bullying and intimidation (HABI) in archaeology has grown in recent years, but the issue remains under-researched. Here, the authors present the first Europe-wide survey to evaluate HABI in archaeological environments, from field to laboratory and classroom. The survey covers 18 forms of HABI, collecting more than 1000 responses from archaeologists of 49 nationalities. A total of 82 per cent of respondents report at least one HABI experience. The authors conclude that HABI is endemic in European archaeology, being experienced by all genders and ages, in multiple settings and countries. Documenting these behaviours is a critical first step to eradicating them and to achieving equity and safety in the discipline.

Lithic technologies dominate understanding of early humans, yet natural processes can fracture rock in ways that resemble artefacts made by Homo sapiens and other primates. Differentiating between fractures made by natural processes and primates is important for assessing the validity of early and controversial archaeological sites. Rather than depend on expert authority or intuition, the authors propose a null model of conchoidally fractured Antarctic rocks. As no primates have ever occupied the continent, Antarctica offers a laboratory for generating samples that could only have been naturally fractured. Examples that resemble artefacts produced by primates illustrate the potential of ‘archaeological’ research in Antarctica for the evaluation of hominin sites worldwide.

Research on archaeological knowledge production emphasises the contingent nature of understandings of the past. In practice, however, levels of uncertainty and conjecture can easily become less than obvious in interpretations, perhaps especially visual ones. The authors interrogate multiple textual and visual accounts of a Viking-Age burial to demonstrate how selection processes—what to portray or omit—highlight the contextual nature of the knowledge claims in these images. Arguing that the circulation of reconstructions shorn of textual nuance leads to misperceptions, the authors call for transparency in the creation of these images. Rather than definitive depictions of archaeological fact, these reconstructions offer tools for archaeologists and the public to think with.

Climate change is affecting archaeological sites and landscapes around the world. Increased rainfall, more frequent extreme weather events, higher temperatures and rising seas not only create new risks but also exacerbate existing vulnerabilities and threats. Building on an earlier Antiquity article that explored climate change and arctic archaeology (Hollesen et al. 2018), this special section provides a global perspective on the impact of climate change on archaeological sites and landscapes and how archaeologists and cultural heritage managers are responding. This article introduces the following three contributions, outlining their main findings to provide an overview of the various challenges around the world, and highlighting current gaps in knowledge and future research opportunities.

Large-scale development-led archaeology has changed the very nature of archaeological datasets. In addition to the familiar positive evidence of structures and deposits, there is now a wealth of ‘true-negative’ evidence: the confirmed absence of archaeological remains. Making good use of such data presents a challenge and demands new ways of thinking. Using case studies based on recent developer-led work in the UK, the authors suggest that focusing on ‘fingerprints’ of past human activity at a landscape scale provides a useful approach. The results argue in favour of changes to existing recording systems, as well as the need to integrate more fully both positive and negative evidence in archaeological interpretation.

How often, and in what contexts, have archaeologists discussed racism over the last four decades? Do societal events lead to sustained discussions of racism among the academic community? Here, the authors seek to answer these questions by applying computational text analysis methods to 68176 abstracts from 41 meetings of the Society for American Archaeology. Discussions of racism are found to be rare—usually a passing mention in the context of broader social issues. Historical archaeologists have addressed racism more frequently than other archaeologists. The results form a baseline against which the discipline's engagement with racism as a research theme and with anti-racist strategies might be tracked.

Armed conflicts frequently result in the damage or destruction of archaeological heritage. The occupation by ISIS of parts of Iraq and Syria is no exception. Here, the authors present the results of work focused on Nineveh, as part of a wider research initiative to monitor damage inflicted by ISIS at archaeological sites in northern Iraq. Combining satellite imagery, low-level aerial photography and ground-based reconnaissance, the project presents a condition assessment of Nineveh, as well as a new topographic map of the city. The results demonstrate that a few high-profile acts of deliberate vandalism were accompanied by much more extensive damage caused by construction and rubbish dumping extending across substantial parts of the site.

Around the world, millions of people live with dementia. Archaeologists have advanced heritage engagement as a form of therapy, for example, through museum object handling. Here, the author proposes an alternative focus, arguing that archaeology can contribute to research on the materialities of care. Through a case study of a ‘dementia assemblage’ curated by an avocational archaeologist, the author documents the embodied and material traces of the collector's earlier archaeological practices, their increasing comfort in handling stone as dementia progressed and their sustained interest in the pareidolic properties of things. The results contribute to a wider understanding of the important role of materiality for those living with dementia.

Recent aDNA analyses demonstrate that the centuries surrounding the arrival of the Beaker Complex in Britain witnessed a massive turnover in the genetic make-up of the island's population. The genetic data provide information both on the individuals sampled and the ancestral populations from which they derive. Here, the authors consider the archaeological implications of this genetic turnover and propose two hypotheses—Beaker Colonisation and Steppe Drift—reflecting critical differences in conceptualisations of the relationship between objects and genes. These hypotheses establish key directions for future research designed to investigate the underlying social processes involved and raise questions for wider interpretations of population change detected through aDNA analysis.

How does a ‘space culture’ emerge and evolve, and how can archaeologists study such a phenomenon? The International Space Station Archaeological Project seeks to analyse the social and cultural context of an assemblage relating to the human presence in space. Drawing on concepts from contemporary archaeology, the project pursues a unique perspective beyond sociological or ethnographical approaches. Semiotic analysis of material culture and proxemic analysis of embodied space can be achieved using NASA's archives of documentation, images, video and audio media. Here, the authors set out a method for the study of this evidence. Understanding how individuals and groups use material culture in space stations, from discrete objects to contextual relationships, promises to reveal intersections of identity, nationality and community.

Archaeology is often defined as the study of the past through material culture. As we enter the Anthropocene, however, the two parts of this definition increasingly diverge. In the Anthropocene the archaeological record ceases to be observed from a distance, but is something we exist within. It is not an assemblage of material culture, but a hyperobject of vast temporal and geographical scope, in which ecofacts increase in prominence and the role of artefacts recedes. This article examines the archaeological record as a hyperobject and argues for an expanded definition of archaeology for the future past. It argues for a shift from the study of objects towards a broader archaeology that includes immaterial Anthropocene culture.

While environmental reconstruction has been a staple in the study of past societies, underused tools from ecology, such as food webs, can enable a more thorough understanding of the human place within ecosystems. Drawing on two recent studies, this article describes the types of questions that can be addressed using this approach. The authors demonstrate how food webs that include archaeological data can provide insights into the effects of extinctions, invasion and ecosystem change on communities, and can address key questions of the structure and dynamics of past societies. This article highlights examples of best practice for the compilation of archaeo-ecological networks, and suggest ways of developing a synthetic understanding of past environments.

The COVID-19 pandemic is creating a viral archive—an archaeological record of history in the making. One aspect of this archive is increased environmental pollution, not least through the discarded facemasks and gloves that characterise the pandemic. This article—directed specifically at archaeologists—argues that an archaeological perspective on ‘COVID waste’ using social media analysis can help to highlight environmental pollution, and that by giving this waste the status of archaeological material and working with other disciplines, archaeologists can contribute to sustainable, policy-led solutions to combat environmental pollution.

Plastic entering the archaeological and geological record may be the defining signature of the Anthropocene. Amidst the growing awareness of the role of plastic in marine pollution, this study demonstrates its terrestrial ubiquity. The excavation of two experimentally reconstructed roundhouses built on their original sites at Castell Henllys Iron Age fort, Wales, reveals evidence of 30 years of heritage interpretation and visitor activity. The nature and extent of the cultural material recovered accurately reflects known activities at this heritage site, but also reveals an unexpected amount of plastic debris in archaeological contexts, indicating how, even in well-managed contexts, plastic is entering terrestrial deposits.