Written in response to a previous article by Weingart and Guenther [2016] in JCOM, this letter aims to open up some critical issues concerning the ‘new ecology of communication’. It is argued that this evolving ecology needs to be openly explored without looking back to a previous idyll of ‘un-tainted’ science.

This issue of JCOM presents some interesting challenges relating to trust and the media ecology that supports science communication. Weingart and Guenther have organised a set of commentaries considering the issue of trust and media from different points of view, by asking for responses to their paper 'Science Communication and the Issue of Trust'. The commentaries focus on traditional and social media and the actors that contribute to media content, though they do not consider 'paid for' content (also known as advertising), which is the subject of a paper by Silva and Simonian also published in this issue of JCOM.

This study applies social network analysis to explore the role that one science festival has played in building the state's STEM learning ecosystem. It examines the breadth and extent of collaboration among STEM educators and their partners, reviewing past and present partnerships across 449 events during the 2015 festival. Three case studies provide in-depth illustrations of partnerships. These findings represent an important step towards (a) mapping a STEM learning ecosystem, and (b) trying to understand how a festival affects the ecosystem itself. Together, study results demonstrate how the festival has served to stimulate and foster STEM partnerships.

Factors that influence reception and use of information are represented in this koru model of science communication using the metaphor of a growing plant. Identity is central to this model, determining whether an individual attends to information, how it is used and whether access to it results in increased awareness, knowledge or understanding, changed attitudes or behaviour. In this koru model, facts are represented as nutrients in the soil; the matrix influences their availability. Communication involves reorganisation of facts into information, available via channels represented as roots. When information is taken up, engagement with it is influenced by external factors (social norms, support and control) and internal factors (values, beliefs, attitudes, awareness, affect, understanding, skills and behaviour) which affect whether the individual uses it to form new knowledge.

Peter Weingart and Lars Guenther have written a short but nevertheless comprehensive stock-taking of science communication and the issue of trust. I fully agree with almost all of their theoretical and critical observations. My aim is to critically discuss the understanding of trust as expressed in the traditional discourse on science communication. From my point of view, this concept of trust in science reveals severe shortcomings. As a consequence, communication strategies following this concept could even jeopardize trust in science.

Peter Weingart and Lars Guenther suggest that the public's trust in science has become endangered due to a new ecology of science communication. An implicit theoretical base of their argument is that the integrity of science as an institution depends on the integrity of science as a profession. My comment aims to reconstruct and question this specific institutional understanding of science. I argue that rust in technologies of knowledge production might be a potential equivalent to trust in professions.

Trust in science is, to a considerable extent, the outcome of communication. News and online media in particular are important mediators of trust in science. So far, however, conceptual works on mediated trust in science are lacking. Taking a cue from Weingart & Guenther, this commentary proposes a concept of mediated trust in science and for its measurement, and shows where it could be used in the science of science communication.

Science communication, whether internally or to the general public depends on trust, both trust in the source and trust in the medium of communication. With the new 'ecology of communication' this trust is endangered. On the one hand the very term of science communication has been captured by many different actors (e.g., governments, PR experts, universities and research institutions, science journalists, and bloggers) apart from scientists themselves to whom science communication means different things and whose communication is tainted by special interests. Some of these actors are probably more trusted by the general public than others. On the other hand, the channels that are used to communicate science are also not trusted equally. Particularly the widespread use of social media raises doubts about the credibility of the communication spread through them.

This paper contains an overview of the programmes currently existing in Latin America to train science communicators. For such purpose, only postgraduate courses held regularly were considered in the study. Twenty-two programmes meeting such requirement were identified in five countries, 65% of which were in fact established over the past ten years. They present a lot of diversity in terms of admittance requirements, goals, contents, approaches, duration and graduation requirements. However, all of them share the same effort, aiming to offer specific contents in the area of science communication.