Global fossil fuel emissions are on track to fall slightly in 2026, as disruptions caused by the U.S. war with Iran forced many countries to cut back on their use of oil and gas, researchers said on Monday.<\/p>\n
Nations are projected to emit roughly 38.2 billion tons of planet-warming carbon dioxide by burning oil, gas and coal for energy this year, according to data from the Global Carbon Project<\/a>. Those sources are the largest contributors to global warming. That\u2019s roughly 0.4 percent less than in 2025.<\/p>\n The dip was driven partly by fighting in the Middle East and the closure of the Strait of Hormuz, as well as by the war between Russia and Ukraine. Both conflicts have caused global prices for crude oil, natural gas, gasoline and diesel to soar, and many nations have responded by using less oil and gas<\/a> and shifting to domestic alternatives, including coal or renewable energy.<\/p>\n Globally, emissions from oil consumption are expected to drop nearly 2 percent this year, while emissions from natural gas will decline roughly 0.3 percent. By contrast, carbon dioxide emissions from burning of coal are expected to rise roughly 0.6 percent, thanks to increased consumption in places like China and India. (Even though coal pollutes more than oil or gas, the uptick in coal consumption was smaller in comparison.)<\/p>\n The drop surprised analysts, who had been anticipating before the war that emissions would rise slightly this year.<\/p>\n \u201cI would call it unexpected,\u201d said Glen Peters, a senior researcher at the CICERO Center for International Climate Research in Oslo and one of the authors of the report. \u201cIt\u2019s pretty rare to see a drop in oil demand this big.\u201d<\/p>\n The findings were published in Nature Climate Change<\/a> and arrived on the first day of this year\u2019s United Nations climate summit<\/a> in Antalya, Turkey. World leaders have pledged to stop the planet from warming, which would require global emissions to peak and then decline to zero.<\/p>\n So far, countries are not on course to meet that goal. This year\u2019s emissions decline is the first since the coronavirus pandemic in 2020, and researchers say it may be only temporary. If the war with Iran ends and the Strait of Hormuz reopens, oil and gas demand could easily bounce back.<\/p>\n \u201cA drop in emissions in one year is not a peak unless it is driven by structural change,\u201d Dr. Peters said.<\/p>\n More than 40 countries, including the United States and many European nations, have managed to push emissions down over the past decade by switching from coal to less-polluting gas and adopting cleaner technologies like wind and solar power and electric vehicles. But fossil fuel use in other countries has kept rising.<\/p>\n A relatively small number of countries account for most of the world\u2019s carbon dioxide output, with China responsible for 32 percent, the United States at 13 percent, India at 8 percent and the European Union at 6 percent.<\/p>\n In the United States, emissions are expected to fall by roughly 1.3 percent this year. Coal-burning ticked up in 2025 thanks to a cold winter and elevated natural gas prices, but that largely reversed this year. Wind and solar power have also continued to grow rapidly. While President Trump has tried to slow those technologies and has promoted fossil fuels instead, those changes will take time to have an effect.<\/p>\n One of the most startling findings is that China\u2019s emissions have been flattening out recently after decades of rapid growth, although experts are still debating whether the trend will persist.<\/p>\n This year, China\u2019s emissions are projected to fall roughly 1 percent thanks to a significant drop in oil consumption. China now has nearly as many electric cars<\/a> as the rest of the world combined, which has blunted its appetite for gasoline. The country is also building more wind, solar and nuclear power than anywhere else, and growth in those low-emissions sources covered much of this year\u2019s increase in electricity demand.<\/p>\n Still, China\u2019s economy has been in a relative slump the past few years. Researchers have sometimes been fooled by past temporary slowdowns in the country\u2019s emissions that disappeared once economic activity picked back up.<\/p>\n \u201cThere are good reasons to think this time is different, but it is still too early to say whether Chinese CO2 emissions have finally peaked,\u201d said Jan Ivar Korsbakken, a senior researcher at CICERO.<\/p>\n