This paper synthesizes the efforts of an interdisciplinary, University-convened communication task force in the U.S. that used science communication theory to develop an effective strategy during the early stages of the COVID-19 pandemic. We outline recommendations for researchers and practitioners who are, or are interested in, implementing theory-based communication practices while describing how we dealt with the unforeseen realities we faced. Overall, we recommend that effective public health and science communication should be based on theory and formative evaluation while relying on established infrastructure, real-time data, a deep understanding of intended target audiences, and intentional coordination with community partners.

In this editorial, we reflect on our new roles as Editor-in-Chief and Deputy Editor of JCOM. We acknowledge the work of previous editors of JCOM, the Editorial Office and the wider JCOM community who have contributed to the success of the journal. We introduce the new Editorial Board and future directions for the journal, and we encourage suggestions from authors, reviewers and readers for taking the journal forward.

Despite the societal relevance of energy research, there is a distinct lack of citizen science initiatives in the field. This paper reports the experience of a participatory and innovative strategy to develop a citizen science initiative for solar energy research. A number of stakeholders participated in the definition and implementation of the initiative, and tools such as surveys and a hackathon were employed. The process described aims to provide a blueprint for transforming the relationship between citizens and research into societal challenges. Here we describe the collaborative process and analyse the main opportunities, limitations and future perspectives.

In this practice insight, an art-based, participatory intervention (#finaltrashtination) is presented as higher education assignment in environmental and climate change communication. The project #finaltrashtination made dominant environmentally destructive ways of wasting visible and stimulated students to take responsibility, advocacy and authorship for transformation. Beyond the one-day eco-culture jam, the project engaged the wider public through conversations about a specific environmental problem. Thus, the project shows how conversational problematization and sensemaking around scientific facts can be initiated by using eco-culture jams promoting very unsettling moments of reflection.

Young children are actors usually excluded from political decisions and also from many science communication projects. Participatory science communication models can help to connect their everyday life with both local policies and science-related content. Using visual methodologies for engagement, we aimed at understanding what preschool children prefer in the city landscape. Results show how young children envision a “better city” and how that construction might defy current scientific knowledge. It further illustrates how science communication can be used to co-produce new knowledge, contributing to the debate about people's needs and perceptions related to science-based options.

This study provides a practice insight into campus/community co-farming as a communication experience connecting civic participants and experts in exploring the potential applications of smart agriculture. The observation focuses on participants' perceptions of smart-agri practices. The objectives of smart-agri practices have been identified to reduce negative environmental impact and meet local challenges; their development corresponds to the civic value-driven experience of promoting sustainable agriculture with low-risk, trackable information. Relatively few studies on smart-agri communication have engaged with the non-expert level. The findings highlight a viable participatory communication form of problem-solving, the public's trust of expertise, and a vision for inclusive socio-economic applications of smart agriculture.

This article will take you through the evolution of our approach in presenting and communicating science. For twenty years ‘1, 2, 3, sciences’ has run participatory live workshops for adults. A special tool, the Group Provisory Conclusion or GPC, involving each participant, contributes to the success. Our expectation was to rekindle the public’s interest through participatory methods, supported by the emergence of collective intelligence. It describes our actions to help people reduce their apprehension towards science.

From ‘Feed the Birds’ to ‘Do Not Feed the Animals’ takes an engaged approach in which science communication is both process and outcome of the research. The project started in the UK in March 2020, coinciding with government-imposed lockdowns in response to the COVID-19 pandemic; since the project’s engagement had been designed around in-person interactions, a rapid and creative rethink was needed. This paper outlines the redesign of the project and describes a hybrid model of on-line and in-person engagement, integrating new skills and technologies which the pandemic catalysed, with well-established in-person practice in science communication. Our research develops good practice for online, participatory science communication, and supports the advancement of engaged research more widely.

Participatory science communication featured in several sessions and individual papers at the 2021 online conference of the Public Communication of Science and Technology (PCST) Network. This coverage recognises the drive away from linear communication to more participatory forms of science communication. In this special edition we present practice insights, papers and essays that explore participatory science communication. These contributions explore definitions, processes and describe case-studies of participatory science communication which involve a variety of publics, from young school students to Indigenous groups to farmers. In this introductory editorial we reflect on the papers, describe the growth of a participatory approach as part of the continuing evolution of science communication; explore a definition for participatory science communication; and consider some of the key concepts and issues that emerged.

Concepts underpinning participatory science communication have much to offer science communication training and capacity building. This paper investigates a capacity building program with 15 science communicators from nine African countries involved in a six-week program in Australia. Data was collected via surveys, observations, informal interactions and ongoing relationships tracking program outcomes. Key features with a participatory nature included: holistic programs giving participants diverse skills and entry points; ensuring participant's freedom, agency, autonomy and self-efficacy; real-world networking as a self-directed participatory process; participant-led design processes to build skills for creating programs; and, embedding training in real-world contexts with deliberately selected publics.