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História, Ciências, Saúde-Manguinhos
Print version ISSN 0104-5970
CARNEIRO, Celso Dal Ré and TONIOLO, João Cláudio. 'Hot' Earth in the mass media: the reliability of news reports on global warming. Hist. cienc. saude-Manguinhos [online]. 2012, vol.19, n.2, pp. 369-390. ISSN 0104-5970. http://dx.doi.org/10.1590/S0104-59702012000200002.
Research into the reliability of news reports on 'global warming' published by the UOL media group, Folha.com and Folha de S. Paulo reveals a tendency for positions to be polarized between complete agreement with the assertion that the causes are entirely anthropogenic (the dominant position) and complete denial. The sample comprised 676 news items from more than 3,000 published on the topic between October 2007 and October 2008. The study tested the hypothesis that the news output of the three media outlets is dominated by the positions of the Intergovernmental Panel on Climate Change. In absolute terms, the panel is the most frequently cited source, since just seven news items comprised exceptions to the 'consensus.' These contrary opinions made up 1.03% of the sample.
Keywords : Global warming; mass media; controversies; geosciences; Brazil.