Ahead of COP31 in Antalya, an Al Jazeera visual explainer breaks down which countries and industries emit the most greenhouse gases: the power industry leads at nearly 30 percent, with power, industry and transport together producing about two-thirds of global emissions. It reports that China, the United States and India emitted almost half the world's 54.1 billion tonnes in 2025, and notes Xi Jinping's pledge to cut China's emissions 7 to 10 percent from their peak by 2035.