Local Grammar Approach to Critical Discourse Analysis: A Case Study on the Discursive Representation of Climate Change in the UN News

This study explores the applicability of local grammar in critical discourse analysis, which is demonstrated by an investigation into the discursive representation of climate change. Using UN climate change news as the data, the study shows that climate change was typically construed as ‘Problem’, ‘Cause’, ‘Definiendum’ and ‘Effect’, and a close examination of the semantic roles of climate change reveals how the UN conceptualised the changing climate and urged the public to act on climate change. Overall, the study shows that local grammar can facilitate the identification of semantic roles of discourse phenomena, which in turn contributes to exploring the association between discourse practice and social reality. It is thus concluded that local grammar could be a viable approach to critical discourse studies.