This study employs quantitative and qualitative methodologies mainly to examine how UNFCCC Executive Secretaries use concessive but-constructions and linguistic polyphony to implicitly argue points of view and convey stance in speeches on climate change. Our findings indicate that, in order to achieve its goals for global climate governance while adhering to humanitarian and diplomatic principles, UNFCCC speeches delivered to the Parties to the Convention and the Stakeholders emphasize the urgent need for concerted action on climate change while implicitly expressing discontent (...) and mild criticism of various Parties and Stakeholders for failing to do their fair share in support of such action. This style of discourse aims to promote group unity, solidarity, and transparency while minimizing the possibility of offending any Parties or Stakeholders. Nevertheless, given the urgency of addressing climate change challenges, we advise that UNFCCC speakers utilize more explicit linguistic methods that exert more direct pressure on specific Parties or Stakeholders who fail to assume their share of responsibility. In addition, we suggest that the UNFCCC focus on enabling the implementation of practical actions to limit the effects of global warming, while continuing to urge affluent countries to provide developing countries with much-needed financial and technological help. (shrink)