Global CO2 emissions fell in 2026, but the Iran war, not clean energy, drove the drop

Global carbon dioxide emissions from fossil fuels dropped 0.4% in 2026 to 42.2 billion tons, according to the Global Carbon Project. Scientists say the decline came mostly from oil market shocks linked to the Iran war and the closure of the Strait of Hormuz, not from structural progress in clean energy. Oil emissions fell nearly 2%, natural gas dropped 0.3%, and coal emissions actually rose 0.6%. The report was released at the UN climate talks in Antalya, Turkey. This is only the third time this century that global emissions have fallen, after the 2009 recession and the 2020 pandemic. Researchers warn that past drops were followed by emissions snapping back once the crisis passed. Still, some experts see signs that China's emissions may have peaked, with rapid growth in solar, wind, and electric vehicles. Land use changes pushed total CO2 emissions up 1% even with the fossil fuel decline. The world is still emitting more than 1,300 tons of CO2 every second, so the drop is small in context. The key question is whether the war-driven dip becomes a lasting peak or another temporary pause.