BELEM: Trade tensions have surged to the forefront of COP30, with China, major emerging economies and smaller developing nations warning that tariffs and carbon border taxes risk undermining global climate goals as the UN climate summit enters its decisive phase on Tuesday (Nov 18). The shift marks a rare elevation of trade into the heart of climate diplomacy. A draft text circulated by Brazil’s COP30 presidency listed trade as one of the top priorities for the summit’s outcome document,