We investigate the impact of a science documentary on individuals' intention to engage in information-related behaviors by experimentally testing the effects of source type (scientist, politician, or anonymous source) and communication setting (interview or lecture) using a manipulated clip from the documentary, ‘An Inconvenient Truth’. Our results indicate that, compared to anonymous sources, use of authoritative ones result in greater intention to engage in some information-related behaviors. Additionally, our results suggest that increased intentions to engage in exchanging information can be attributed to negative affect induced by the clip featuring a politician. Implications for documentary films and science communication are discussed.

This book examines the media discourses about environmental pollution in Australia, China and Japan. The book's authors focus on the actors involved in discussions of risk versus those involved in responsibility for environmental pollution. The authors use novel and traditional means of analysis that combine techniques from a variety of disciplines to examine case studies of media discourse. The book provides an interesting, if at times simplistic, overview of the pollution issues facing each country. The conclusions made from the media analysis are relevant to those researching and practicing science communication in the context of such important environmental issues.

Climate change is a global risk as its causes and effects are not limited to national borders, but the risks and the responsibility are not evenly spread [Beck, 2009]. Pakistan is facing especially severe impacts in the form of disasters, floods, droughts, rising temperatures, cyclones and rising sea levels due to global emissions, despite its national emissions being nominal and accounting for only 0.46% of worldwide emissions [World Bank, 2018]. Ironically, the level of public awareness of climate change is low in Pakistan compared to not only advanced countries, but also to other countries in the South Asian region [Zaheer and Colom, 2013]. A contributing factor behind this is the communication gap between the media and the broader public. This study aims to explore the factors responsible for the limited coverage of climate change in the news media, leading to confusion, uncertainty, denial and low levels of climate change awareness in Pakistan. Qualitative semi-structured interviews were conducted with media professionals and the findings show that political, economic, social, cultural, technological and scientific factors influence the news coverage of climate change issues.

This issue of JCOM explores the question ‘what works in science communication?’ from a variety of angles, as well as focusing on the politically sensitive topic of climate change. In addition, the issue contains a set of commentaries that explore the sometimes conflicting roles of universities in science communication.

In this paper, we respond to the critiques presented by [Kahan, 2017]. Contrary to claims that the scientific consensus message did not significantly influence the key mediator and outcome variables in our model, we show that the experiment in [van der Linden et al., 2015] did in fact directly influence key beliefs about climate change. We also clarify that the Gateway Belief Model (GBM) is theoretically well-specified, empirically sound, and as hypothesized, the consensus message exerts a significant indirect influence on support for public action through the mediating variables. We support our conclusions with a large-scale replication.

This paper analyzes data collected but not reported in the study featured in van der Linden, Leiserowitz, Feinberg, and Maibach [van der Linden et al., 2015]. VLFM report finding that a “scientific consensus” message “increased” experiment subjects' “key beliefs about climate change” and “in turn” their “support for public action” to mitigate it. However, VLFM fail to report that message-exposed subjects' “beliefs about climate change” and “support for public action” did not vary significantly, in statistical or practical terms, from those of a message-unexposed control group. The paper also shows how this absence of an experimental effect was obscured by a misspecified structural equation model.

Research suggests non-experts associate different content with the terms “global warming” and “climate change.” We test this claim with Twitter content using supervised learning software to categorize tweets by topic and explore differences between content using “global warming” and “climate change” between 1 January 2012 and 31 March 2014. Twitter data were combined with temperature records to observe the extent to which temperature was associated with Twitter discussions. We then used two case studies to examine the relationship between extreme temperature events and Twitter content. Our findings underscore the importance of considering climate change communication on social media.

In June of 2014, geologists reported that, for the first time, more earthquakes greater than magnitude 3.0 occurred in Oklahoma than in California [Terry-Cobo, 2014]. In Oklahoma, the frequency of earthquakes that are strong enough to be felt has increased 44 times in recent years and this has been correlated to a dramatic increase in high-volume, horizontal hydraulic fracturing (HVHHF) operations [Hume, 2014]. The aims of this study are: (1) to determine how hydraulic fracturing, commonly called fracking, and Oklahoma earthquakes are framed by print-based media at the local, national, and international levels; (2) to understand how the association between these factors has evolved over time; and (3) to further analyze the differences between experts on the subjects of causality and threat characterization (e.g., severity). A total of 169 print news reports were included for analysis: 48 local/Oklahoma reports (28% of total sample), 72 national reports (42% of total sample) and 49 international news reports (30% of total sample). The findings reveal significant differences in the frame techniques, sources of information, and the foci of subject matter between three different media scales in print based media. Results, discussion and implications are provided.

This study aims to test the perceptions of audiences to positive and non-aggressive humour in two popular articles. The themes were the effects of climate change on biodiversity and the over-exploitation of species. Both articles were published on-line at a Portuguese environmental site, and readers were asked to answer to an on-line survey. A total of 159 participants submitted their answers concerning their receptiveness to the humour, demographic information and comments. Results showed that the use of humour in popular articles is considered valuable for the majority of these readers, but different degrees of receptiveness suggest caution in its use.

How users discuss climate change online is one of the crucial questions (science) communication scholars address nowadays. This study contributes by approaching the issue through the theoretical concept of online public arenas. The diversity of topics and perceptions in the climate change discourse is explored by comparing different arenas. German journalistic articles and their reader comments as well as scientific expert blogs are analyzed by quantitative manual and automated content analysis (n=5,301). Findings demonstrate a larger diversity of topics and interpretations in arenas with low barriers to communication. Overall, climate change skepticism is rare, but mostly present in lay publics.