Historical background The BBC Radio Science Unit has its roots in two radio networks, going back more than 40 years. In the late 1950s, BBC External Services (now World Service), appointed a science correspondent and began a weekly science magazine programme. Initially called `Science and Industry', it changed its name in about 1964 to `Science in Action'. It is still running today, after more than 2000 editions, probably making it the longest running science show on radio.

The Radio is an instrument of communication that has percolated to all the strata of the diverse Indian society. Its position has been consolidated through history as a regular companion and a source of information and entertainment. Its affordability, accessibility and non-reliance on costly resources have ensured its presence in almost all the households. It has become indispensable from kitchens, family rooms and even workspaces. It is one of the few or rather the only medium of communication after the print media wherein information dissemination still is primary and entertainment a secondary requirement, especially the rural areas.

The objective of the present paper is an attempt to measure the public understanding of science in the area of health and hygiene and test the efficacy of "cultural distance model". A pre-tested open-ended questionnaire was used for administering cross-sectional surveys at a religio-cultural festival in India. 3484 individuals were interviewed and responses were coded and entered to construct computer database. The data was used for determining the cultural distance of five scientific concepts from the quotidian life of the target population. In developing countries, the formal system of modern education operates as a strong determinant in shaping cultural structures of thoughts prevalent among the citizens. There exists a cultural distance between the scientific structure of configuring natural occurrences and peoples' complexity of thoughts. The distance varies significantly across the concepts that were subjected to the inspection and is a function of the nature of scientific information.

The international symposium "Science on air: the role of radio in science communication" was held in Trieste on 1 and 2 October, 2004. To our knowledge, it is the first conference ever specifically held on science on radio, and it is certainly the first time science radio journalists, researchers, and media experts from 16 different countries met to discuss their journalistic practice and the role of radio in science communication. The main results are presented in this article.

The question was raised in the 4th November copy of The New York Times when it entitled the editorial of Garry Wills (political and cultural historian), regarding the re-election of George W. Bush, "The Day the Enlightenment Went Out". Wills' theory, with which the directors of the newspaper palpably concur, is that Bush was re-elected because "many more Americans believe in the Virgin Birth than in Darwin's theory of evolution".

What makes a science story? Behind the scene there are many choices: what, how and when to broadcast. Decisions are made according to the general criteria of news values to which we add two groups: personal and emerging criteria. General criteria of choices are news values for the science stories. According to Tonner, stories containing human interest are important in everyday life, report less complicate discoveries and science as a part of the broader subject comes to the media easily.

The concept of a biosphere reserve was adopted by UNESCO, within the MAB Programme, launched in 1971, in order to promote and to demonstrate the harmonious relationships that should exist between people and the environment and, particularly, to promote a harmonization model of the environmental protection needs with those of the sustainable economical-social development. All the international conventions, the management and action plans accomplished in order to achieve the sustainable development objectives underline the great importance to establish a constructive dialogue, with impact on the long term decisions, between the decision makers and the wide public (especially with the local population).

In a beautiful Barcelona, bathed in sun, the 8th PCST Congress was celebrated at the beginning of June.1 Besides the magnificent location of this year, there are several other reasons to commemorate the event. The first reason is that the community of professionals and scholars interested in Public Communication of Science and Technology (science journalists and writers, scientists, sociologists, teachers, historians, science museum curators, etc.) is growing quickly.

Can (and should) there be a "Mediterranean model" of science communication? For those of us who work in the field of science communication in a country which is on the Mediterranean Sea, this has always been a question that spontaneously leaps to mind. This is because we "feel" there is something intangible in our way of communicating science that is rather similar to the way of a French, Spanish (or even Brazilian) colleague of ours, whereas it is slightly different from that of an American or British one. And yet, the more in depth this question is studied in time, the more complex the answer becomes.