Climate change is a multi-faceted issue. It relies on deep scientific bases, but merges with politics, economics, ethics and culture in a complex and strongly nonlinear social debate. This interview focuses on the relationships between public communication on climate change (with emphasis on the so-called ‘new media’) and the decision making processes. It argues that more productive and sustainable forms of communication on climate change are needed due to problems related with validation of information in the Web.

The purpose of this commentary is extending and enriching the discussion raised in the “Science Journalism and Power in the 21st Century” workshop, held last month in the context of MAPPE project at SISSA, Trieste. We collected three interviews of authors expert in communication and media on different fields strongly influenced by participatory communication practices: Anabela Carvalho (global warming and climate change), Pieter Maeseele (technological risks) and Denise Silber (‘eHealth’ and ‘Health 2.0’). The interviews therefore analyze three different perspectives of a more general issue: How is the ecosystem of scientific information changing by means of a new concept of ‘public’? Which are the new ways in which citizens produce and manage scientific information? What could be a new role for science journalism? These three interviews aim to delve, from a theoretical point of view, into the sociological framework of an ecosystem of information driven by active public participation in the communicative practices. Emphasis will be put on the way in which scientific knowledge is reconstructed and negotiated in the Web 2.0 arena: democracy in the knowledge society intrinsically depends on a fair outcome of this process. Nevertheless, the crisis of traditional media and journalist’s figure is threatening the democratization of science. In this sense, the social function of journalism is still – and will be – unescapable. The re-distribution of social power by means of Web 2.0 is a key issue, and new sensible communication practices and professionals are needed.

Media and communications technologies play a significant role in disaster management procedures in regards to the mobilization of resources in emergency situations. While the dissemination of warning messages relayed via broadcast technologies have had some positive outcomes in terms of reducing casualties in emergency situations in Bangladesh, there remain some specific problems in regards to the manner in which these messages are distributed within this developing nation. These problems are addressed within this paper. Examining the existing cyclonic warning dissemination system and the manner in which warning information is distributed and received, this study addresses citizen responses to mediated warning messages in the vulnerable coastal regions of Bangladesh. The results indicate that attitudes towards mediated warnings held by Bangladeshi citizens in these environs differ depending upon their access to media, type of dwelling and differing levels of literacy. This study also provides recommendations for media professionals and policymakers in regards to disseminating more effective warnings to the inhabitants of Bangladesh's cyclone-prone coastal belt.

Public communication on health issues on the Internet is not only a matter of popularization of medical information. It deeply deals with narration, conversation and dialogue, which are typical values in the Web 2.0. This interview will emphasize that blogs, forums, wiki are new ways in which population has been reconstructing and integrating medical knowledge. These ways are re-defining medical knowledge by means of unhinging the standard medical communication practices, based on a linear diffusion of knowledge form experts to laypeople.

Eduard Kaeser has written an interesting and critical book that is concerned with the connections between science and everyday life. The conception of ‘pop science’ is introduced to characterize developments in science popularisation that are spectacular, superficial and potentially harmful to science-society relationships. The book is of special interest to the science communication community, since it may initiate discussion about the purposes of communicating science, and also about legitimate and illegitimate strategies and means of doing so.

Technoscientific risks have been creating a growing social demand for participation in the scientific citizenship. This interview will emphasize that decision making (and so, in a more general sense, democracy) in the knowledge society requires new mediatic forums and new communication processes suitable to the highly multi- and inter-disciplinary nature of modern social debates. It argues that a new research agenda for risk conflicts, and a more neutral role for science journalism, are needed.

Science journalism usually focuses on achievements presented in scientific papers previously published in specialized journals. In this paper we argue that the Actor-Network Theory (ANT) can help to widen this approach and reduce the dependency on scientific papers, by valuing not only scientists, but also other actors, theirs motivations, interests and conflicts. ANT could also help to reduce the distance between scientists and the audience by exposing uncertainties about the production of science.

Assuming that scientific development and artistic research are genetically similar, this article shows the common need of knowledge of art and science, their dialectical and multidirectional relations and the unstable boundaries between them. The fractal art has assimilated the cognitive and perceptive changes in the realm of non-euclidean geometries and has become a precise instrument of "epistemological observation". Artistic practices materialize and communicate the laws of science, while scientific revolutions are in actual facts metaphorical revolutions.

Several publications have sought to define the field of science communication and review current issues and recent research. But the status of science communication is uncertain in disciplinary terms. This commentary considers two dimensions of the status of discipline as they apply to science communication – the clarity with which the field is defined and the level of development of theories to guide formal studies. It argues that further theoretical development is needed to support science communication’s full emergence as a discipline.

Science must be open and accessible, and diffusion of knowledge should not be limited by patents and copyrights. After the Open Science Summit held in Berkeley, some notes about sharing scientific data and updating the social contract for science. Against the determinist view on technological and legal solutions, we need an explicit reflection on the relation between science and society. Both academic and industrial science seem unable to fulfill open science needs: new societal configurations are emerging and we should keep asking questions about appropriation, power, privatisation and freedom.