Anniversaries provide great opportunities to celebrate achievements, to look into the future, and to do some self-reflection. I have the honour of doing so in a specific field of science communication that I’m familiar with: the field of citizen science communication, especially with a European focus. I hope this commentary prompts others who are experts in their regions of the world to also reflect on the past and the future for this growing field.

What can we say about equity, diversity and inclusion in science communication research over the past 20 years? This is a thorny question because of course we want to be constructive, to recognise change and to respect those whose hard-won research on equity issues has meant so much to many of us. At the same time, it is impossible — given what we know through our research — not to take a critical stance. We critique the status quo of science communication research from a social justice perspective and reflect on how we might change, perhaps bringing what has been marginal (and indeed the marginalised) into the core of science communication research, practice and policy.

In this commentary, I reflect on twenty years of teaching science communication at universities in Australia, Singapore and New Zealand. I discuss many of the challenges and opportunities for people working in the field. Some of the professional teaching experiences, challenges, and lessons I have learned may resonate with colleagues or help newcomers navigate the complexities of academic landscapes.

Theoretical perspectives of science communication were initially driven by practice, which in turn have influenced practice and further science communication scholarship. The practice of science communication includes a variety of quite diverse roles. Likewise, the scholarship of science communication draws upon a mix of disciplines. I argue that the apparent messiness of science communication scholarship and practice is also its wealth. If blame can be avoided in developing and applying science communication models, and if the coexistence of all science communication models can be embraced then both the scholarship and practice of science communication is likely to be more effective.

In this commentary, we discuss the challenges associated with carrying out research in science communication in Latin America. We start with the ‘‘invisibility’’ of Latin American studies in the three most prominent international journals in the field (although there has been a growing number of studies in the region). Then, we look to the recent popularisation of science through social media, the political issues facing the region and the massive spread of disinformation and fake news, which has been widely accentuated by the pandemic. We argue that there is an urgent need but also opportunities for innovation and collaborative research in science communication. Finally, we call attention to how the present situation might lead to bigger gaps among researchers from the developing world, including Latin America, and the so-called developed world.

Our 20th anniversary this year is a special milestone for JCOM. It is a time to reflect on our past performance and future prospects. We pause to consider the activities of this journal, and the broad field of science communication over the past 20 years.

This paper describes a school intervention focused on visual art and solar physics using science capital and STEAM methodologies to develop STEM engagement activities. Data from 40 children (aged 8–11) in two primary schools in the North East of England are presented, using pre- and post-intervention surveys which contained free-response and likert-scale questions. The paper presents a novel, and transferable, method of evaluating children’s drawings using online comparative judgement marking software, particularly suited to those without a background in qualitative research. Using comparative judgement this paper shows that the intervention led to a moderate increase in girls’ knowledge of solar physics.

The ocean has a vast capacity for absorbing heat and carbon dioxide, seriously threatening local habitats for marine life. Challenges in connecting wider society with this crisis may originate in its poor visibility for non-specialists: the data can be inaccessible and hard to relate to. In a series of immersive community workshops, participants created artworks combining recent physical ocean climate data recorded in Otago, New Zealand, with impacts on local species from published studies. We found that crafting visual stories was a powerful way to distill greater meaning from complex climate data, and engage participants with harmful changes underway locally.

Although Science Art (“SciArt”) is increasingly used in science communication as a way to make content more engaging or accessible, little is known about why artists pursue this practice or what they hope to achieve through their work. This project addresses these questions through a thematic analysis of interviews with 131 practicing science artists. We identify a diversity of goals for creating SciArt, only some of which involve communicating science.

Sustainability communication has been an increasing focus globally for many diverse and complex resource-based industries, including beef production, due to an increase in public scrutiny. However, this has received limited research interest. This study, drawing on in-depth interviews, explores key internal and external stakeholders’ perceptions of sustainability communication challenges using the Australian beef industry as a case study. Diverse views about public perceptions, the role of communications in trust, and internal issues reflect challenges such as industry culture, isolation, and industry complexity and breadth. This research highlights and discusses a range of sustainability communication issues in complex contexts.