One mundane procedural issue stands out, however: voting. Due to the concerted efforts of oil-producing countries like Saudi Arabia, participants in the United Nations Framework Convention on Climate Change, or UNFCCC—the treaty that kicked off the yearly COP negotiations—are unable to vote on contentious issues. Instead, they have to pursue consensus, giving every country a de facto veto power over proposals they don’t like. Environmental groups have called this a “poison pill” that has undermined climate progress for decades. Many are trying to stop it from sullying other international environmental agreements, like the UN plastics treaty.