Securitiza？？o das mudan？as climáticas: o papel da Uni？o Europeia

this work aims to analyse the "securitisation movement" of the climate change in the international system, taking the european union as a securitising actor. from buzan's, waever's and wilde's discussions, one shall understand the process of threat construction in the environmental field. the definitions and criteria established by the european union as a securitising actor are taken as starting point, when climate changes were annouced as an existing threat to the international security at a security council's meeting held in 2007. the impacts of the securitising speech acts amongst the present states, here undertood as the audience, will also be taken into account. the main method chosen to guide this work was the speech analysis, having as the main source the official documents and government authorities statements disclosed both by the security council and the european union.