This commentary describes the work of the NGO Danish Seed Savers, working with heritage plants, highly prioritized by The Food and Agriculture Organization of the United Nations. The Danish Seed Savers act as activists, when they work to change the implementation of EU seed-legislation. At the same time, they have a seat in the Danish Committee on Plant Genetic Resources and help the Ministry of Food to protect and communicate about heritage plants. The commentary reflects on the role of the Danish Seed Savers. They are science communicators and activists but asks: are they alternative?

‘Alternative’ and ‘activist’ are words with meanings strongly influenced by the social context of their use. Both words refer to concepts, things or people that stand in opposition to other concepts, things and people that are often taken for granted, and not elucidated. In science communication studies, ‘science’ is often an unelucidated concept. Indeed, in recent history, efforts within academia to map the perspectives on science that we might explore with the public have proven fractious, to say the least. In everyday science communication practice, however, we can readily see that there are many differing perspectives on science (and its alternatives) and on how, as the activists urge, it should (or should not) be deployed. This commentary encourages a symmetrical approach to understanding ‘alternative’ and ‘activist’ in the context of science communication, which has the potential to bring out a range of perspectives and provide a context for democratic engagement.

For many decades, NGOs and social movements have acted as “alternative” science communicators. They have made strategic use of science to promote their ideological stances, to influence political and/or economic decision-making and to motivate civic action. To date, however, our understanding of science communication in activism has received little critical attention. This set of commentaries acts as a starting point for further research and reflection. The different cases and perspectives urge readers to consider the impact, democratic legitimacy, and relevance of alternative science communication, and the challenges that alternative science communicators pose for science communication and society.

This commentary uses a case study of Uganda and the country's attempts to adopt genetically modified organisms (GMOs) to demonstrate how activists have become communicators of scientific knowledge in the digital age. The digital age allows activists to share their information and collaborate with those who can push their agenda. I argue that anti-GMO activists have positioned themselves as influencers in a debate where weight-of-scientific evidence seems to have been overshadowed by perceptions, largely driven by socio-democratic considerations that require participation in technological uptake.

Activists, social organizations and members of citizen collectives in Mexico and Latin America have assumed not only the fight for water and territory, but also the difficult task of interacting with experts in different scientific fields, and the challenge of placing their causes in the public space. They take the role of cultural mediators between affected people, scientists and politicians within hybrid transdisciplinary working groups. Within the framework of these groups' actions, a new current of communication of science has emerged, one that shifts its interest from encouraging involvement with scientific knowledge for its own sake, to untangling, understanding and communicating socio-environmental issues for the explicit purpose of contributing to social transformation.

Often, new social movements engaged with science and society are characterised as contesting objectivity; the neutrality of modern science seeking to legitimise ‘lay perspectives’. It has been an article of faith among scholars to view third world movements as anti-science, anti-modernity and post-developmentalist. This commentary describes ideological framework, modes of action and organisation of the All India People’s Science Network (AIPSN), one of the People’s science movement (PSMs) active for more than the past four decades. They dispute the dominant development trajectory and science and technology-related policies for reinforcing the existing inequities. Nevertheless, they see ‘science’ as a powerful ally for realising their radical emancipatory vision of ‘science for social revolution’. Mobilising ‘science activists’ as unique alternate communicators, they strive for lay-expert collaboration. The canonical framing of third world social movements as postcolonial and anti-modern does not capture this unique case from India. Further studies are required to tease out such strands of social movements elsewhere.

Environmental NGOs play a vital role in public climate communication through their awareness-raising activities and educational campaigns. This commentary points to a potentially problematic implication of their role as climate science advocates which includes the general tendency to attribute environmental changes and extreme weather events to climate change. These climate-centric framings, however, may not resonate with the lived experiences and belief systems of local communities, not even in geographically vulnerable areas. I draw on local case studies to show that communities often express a sense of “shared responsibility” between global carbon dioxide emissions and ecologically deleterious local practices such as shrimp farming (in Bangladesh) and cutting trees (in the Philippines). As a consequence, the studies show mismatches between activists' attributions of local circumstances and events, and local communities' ways of knowing their local circumstances.

Interdisciplinarity for complex problem solving is a rising phenomenon. Each self-respecting university is trying to realise different programmes and approaches to interdisciplinary teaching and research. The debate on what interdisciplinarity is, how it may work as a substantial part of a university, which barriers are encountered to realising interdisciplinary teaching and research and what the added value is, is addressed in this paper from a social science perspective. Based on the attendance of a conference at the Volkswagenstiftung organised by the Humboldt University of Berlin, different scholarly viewpoints and examples are explored on Interdisciplinary teaching and (researching). Collaborations across the at-times-fragmented subfields of research and education ultimately yield insightful, informative, and even educational experience that creates space for mutual understanding and new ways of thinking about seemingly-established approaches to knowledge-building and communication.

In this comment, we focus on the ways power impacts science communication collaborations. Following Fischhoff's suggestion of focusing on internal consultation within science communication activities, we examine the ways such consultation is complicated by existing power structures, which tend to prioritize scientific knowledge over other knowledge forms. This prioritization works in concert with funding structures and with existing cultural and social hierarchies to shape science communication in troubling ways. We discuss several strategies to address problematic power structures. These strategies may reveal and thus mitigate problems in individual collaborations, but these collaborations exist within a larger infrastructure in need of systemic change.

Fostering interdisciplinary collaboration is critical for addressing complex research problems. At the earliest stages of research ideation and mobilization, we need to create environments that cultivate collective creativity, curiosity and decision making among those with diverse expertise. The fields of design and design thinking offer excellent tools and approaches for promoting rich conversations while simultaneously navigating ambiguity. Here we describe how design strategies can support team science, specifically as loosely formed groups collaboratively brainstorm around intractable problems.