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.

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.

This practice insight focuses on lessons learned while completing a research project designed to compare the relative effectiveness of three communication strategies in rural communities relative to motivating citizens to take action on a public health issue, specifically Type 2 diabetes. Our main arguments are: 1) Engaging citizens in any type of communication related to public health or science action requires first assessing a community's readiness for that action; and 2) Community readiness — rather than communication methodology — is the better predictor of citizens' participation in collective or individual actions on public health and science issues.

In this “practice insight” we present a series of experiences run by Association Traces, injecting participatory approaches into science engagement activities by valuing the knowledge of the public rather than focusing on their ignorance. Starting from the observation that a sort of hybridization is occurring between cultural activities and public engagement with science on one side, and co-creation and participatory activities on the other, we provide some insight on the features of each approach. Examples are then used to highlight the potential value of this hybridization: as a way of making participatory activity more recognizable and accessible to a wide audience; to ensure that scientists have a professional interest in engaging in the communication activity; to raise a sense of ownership and empowerment in the audience, etc. These examples will eventually show that participation may lead to science communication practices that are socially-inclusive and/or productive for research, and ideally both.

Participatory media has the ability to engage people in stories of science in ways that are personal, profound and culturally relevant. This essay launches from my experience as a scientist-turned-filmmaker and my establishment of the Ocean Media Institute, a global media collective that serves as a participatory platform for the communication of ocean science. Through collaboration and innovation, we as science storytellers have the ability to shape narratives that are factual, evidence-based and embrace greater inclusivity. Only when we invite diverse perspectives that draw from all ways of knowing, will we be able to provoke deeper dialogue and ignite change.

This essay approaches the question: ‘What does participatory science communication for transformation mean in Colombia?’ The answer comes from an examination of the public policy instruments that have promoted participatory scientific communication through the concept of social appropriation of science, technology, and innovation (STI). In the gaze of these public policy instruments, it is evident how the social appropriation of STI has been intended as a means of transformation.

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.

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.

While short-term participatory science communication activities have been well researched, long-term programs have received scant attention. Analysing survey data and participant discussions, I investigated interactions between Australian farmers and scientists engaged in the Climate Champion Program (2009–2016). I compared their interactions to three theorised science communication models: deficit, dialogue and participatory. I found their interactions illustrated a mix of the characteristics of all three models. While farmers and scientists appeared to be motivated to interact by deficit and dialogue objectives, respectful and trusting relationships emerged from long-term participation, which was key to making deficit- and dialogue-style communication more effective.