This essay explores the relationship of science communication and public relations and contends that science communication has something to learn from public relations research. I provide an alternate history of public relations, drawn from the history of social movements (activism). I outline two areas from public relations theory: first, notions of human agency and equity in communication and, second, public interest in public communication. In doing so, I highlight how research from critical public relations could contribute to science communication efforts to enable participation with science and technology from wider, more diverse publics.

Blogs provide potential for publics to engage more deliberatively through dialogue in controversial science than one-way dissemination methods. This study investigated who was commenting on two antithetical climate change blogsites; how they were commenting; and the quality of their dialogue. Most research into science blogs has focused on bloggers rather than commenters. This study found that both blogsites were dominated by a small number of commenters who used contractive dialogue to promote their own views to like-minded commenters. Such blogsites are consolidating their own polarised publics rather than deliberately engaging them in climate change science.

Verbal probability phrases are often used in science communication to express estimated risks in words instead of numbers. In this study we look at how laypeople and statisticians interpret Dutch probability phrases that are regularly used in news articles. We found that there is a large variability in interpretations, even if the phrases are given in a neutral context. Also, statisticians do not agree on the interpretation of the phrases. We conclude that science communicators should be careful in using verbal probability expressions.

How a discipline's history is written shapes its identity. Accordingly, science communicators opposed to cultural exclusion may seek cross-cultural conceptualizations of science communication's past, beyond familiar narratives centred on the recent West. Here I make a case for thinking about science communication history in these broader geotemporal terms. I discuss works by historians and knowledge keepers from the Indigenous Australian Yorta Yorta Nation who describe a geological event their ancestors witnessed 30,000 ybp and communicated about over generations to the present. This is likely one of the oldest examples of science communication, warranting a prominent place in science communication histories.

On 3rd and 4th February, at Pavilhão do Conhecimento (Lisbon, Portugal), Ciência Viva organized the 2nd meeting of Mediation of Knowledge and Scientific Culture. This edition reunited politicians, teachers, science communicators and researchers to discuss culture, science communication and museums. The organization promoted workshops and invited three keynote speakers: Abdulaziz Alhegelan, Brian Trench and Ngaire Blankenberg who led discussions around cultural differences, science communication processes such as evaluation or impact, and how museums need to change to became more neutral.

This study explores the effects of food science perception on food decisions in the controversial case of genetically modified (GM) foods. We examine (1) how scientific consensus and scientific deference affect the public perception of GM foods; and (2) how perception and healthy eating interest influence people's actual food consumption decisions. We categorized our samples into four groups based on different risk/benefit perceptions of GM food: tradeoff, relaxed, skeptical, and uninterested in the process of further data analysis.

Many studies have examined the impression that the general public has of science and how this can prevent girls from choosing science fields. Using an online questionnaire, we investigated whether the public perception of several academic fields was gender-biased in Japan. First, we found the gender-bias gap in public perceptions was largest in nursing and mechanical engineering. Second, people who have a low level of egalitarian attitudes toward gender roles perceived that nursing was suitable for women. Third, people who have a low level of egalitarian attitudes perceived that many STEM fields are suitable for men. This suggests that gender-biased perceptions toward academic fields can still be found in Japan.

Public acceptance of vaccination and Genetically Modified (GM) food is low and opposition is stiff. During two science festivals in France, we discussed in small groups the scientific evidence and current consensus on the benefits of vaccination and GM food safety. Our interventions reinforced people's positive opinions on vaccination and produced a drastic positive shift of GM food opinions. Despite the controversial nature of the topics discussed, there were very few cases of backfire effects among the 175 participants who volunteered. These results should encourage scientists to engage more often with the public during science festivals, even on heated topics.

As science communication programs grow worldwide, effective evaluation and assessment metrics lag. While there is no consensus on evaluation protocols specifically for science communication training, there is agreement on elements of effective training: listening, empathy, and knowing your audience — core tenets of improvisation. We designed an evaluation protocol, tested over three years, based on validated and newly developed scales for an improvisation-based communication training at the Alan Alda Center for Communicating Science. Initial results suggest that ‘knowing your audience’ should apply to training providers as they design and evaluate their curriculum, and gender may be a key influence on outcomes.

Science communication is proliferating in the developing world, however, with respect to science centres, as a whole Africa is being left behind. Here 15 participants in a capacity building program are investigated using traditional needs-based and contemporary asset-based development conceptualisations. These development theories parallel deficit and participatory approaches, respectively, within science communication and demonstrate synergies between the fields. Data showed staffing, funding, governments, host institutions, and audiences are prominent needs and assets, networks are a major asset, and identified other influential factors. Analysis suggests a coordinated model involving individuals, host institutions and governments to facilitate growth of African science centres.