Fossil Fuel Emissions Are Expected to Decrease in 2026
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Global fossil fuel emissions are likely to decrease by 0.4% in 2026, according to new research by the Global Carbon Project, an annual report that tracks trends in global carbon emissions.
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The drop was spurred on by the energy shock triggered by the Iran war and the expansion of wind and solar power adoption globally.
While it’s a promising sign, the researchers say that the findings don’t spell out a permanent decline in fossil fuel use, but rather a temporary shift.
“We see a decrease in emissions, but it's probably driven by a short term shock rather than a systemic peak,” says Mike O’Sullivan, senior lecturer at the University of Exeter and one of the report’s researchers.
Two of the world’s three biggest emitters are expected to see a drop in emissions. China’s emissions are expected to drop by 0.9% in 2026, following two years of remaining flat or falling. The country is a world leader in clean energy adoption, but is also responsible for 32% of global fossil fuel emissions. The U.S. is also expected to see a 1.3% decrease in emissions, mainly attributed to a decrease in coal emissions following a spike in 2025 due to high natural gas prices and a spell of cold weather. This trend, however, could shift. Since taking office, President Trump has invested hundreds of millions towards reviving the country’s coal industry, and repealed emissions standards for coal and gas power plants.
India, on the other hand, will likely see emissions rise by 4.4%—a bump from the 3.5% annual growth in fossil fuel emissions it has averaged over the last decade.
The European Union and Japan are also expected to see slight decreases in fossil fuel emissions, while emissions for the rest of the world are also expected to decrease by 0.7%—largely due to decline in oil use.
Global emissions from land-use change, another sector tracked in the report, have decreased over the past decade, but this year they’re expected to rise to 5.1 billion metric tons. That’s due to an increase in peat fires, slow burning fires that move beneath the ground, consume wetland soil and often lack visible flames, many of which have been ignited by human activities, and El Niño, which is increasing wildfire risk in places like Southeast Asia and South America. These fires release large amounts of carbon dioxide and greenhouse gasses into the atmosphere.
The concentration of CO2 in the atmosphere is set to reach 427.7 ppm in 2026—54% above pre-industrial levels. According to the report, the global carbon budget, which represents how much carbon dioxide can be emitted before warming reaches 1.5°C above pre-industrial levels, is now at 150 billion metric tons—equivalent to less than four years of emissions, assuming the world continues to emit at its current rate.
The world is expected to blow past 1.5 degrees of warming, the U.N. has recently warned, and global climate goals are falling short of what is needed. But the authors highlight some signs of promise.
Despite some places seeing total emissions increase between 2019 and 2025, all regions still saw growth slow—including in China, India, and other emerging economies. On the other hand, more than two dozen countries have managed to grow their economies without increasing emissions, and the global adoption of wind and solar energy has helped avoid billions of metric tons of emissions.
The authors estimate that, between now and the end of 2028, 64-79% of emissions from new energy demand will be offset by new solar and wind power and electric vehicles. What’s more, if the world continues to see an acceleration of clean energy adoption, it could see emissions peak and decline in just a few years.
It doesn’t mean the work is done. “There's plenty of good news in terms of the rapid expansion of renewables,” says O’Sullivan, “but on a global scale, it's completely inadequate.”