This article presents an narrative of the Eighteenth Conference of the Parties to the UN Framework Convention on Climate Change (COP-18), which occurred in Doha (Emirate of Qatar) from November 26 to December 7. Moreover, analyzes the Brazilian position at the meeting. To this end, based on information collected at the event, analyzes the Brazilian positions in the negotiations of international environmental order of climate change. The article concludes that Brazil is at a crossroads: stay with the G77 + China group or lead the negotiations with the burdens she has in front of its position in the international system.