Global fossil emissions set for a slight dip in 2026, but not a durable turn

The Global Carbon Project projects fossil CO₂ down 0.4% in 2026 as solar, wind and EVs meet most new demand, though the Iran conflict oil shock is part of the story.

The Global Carbon Project projects that global fossil fuel CO₂ emissions will fall 0.4% in 2026, to 38.2 billion metric tons. The figure comes from the 21st annual Global Carbon Budget, published in Earth System Science Data and led by Pierre Friedlingstein of the University of Exeter, with more than 90 other institutions involved. Oil is projected to fall 1.9% and natural gas 0.3%, while coal is projected to rise 0.6%.

The report ties the oil decline likely to a short-term energy shock from the Iran conflict, with higher prices and supply constraints. Clean energy is doing real work as well: two-thirds of the rise in global energy demand is being met by added solar, wind and electric vehicles. Solar and wind avoided 0.28 billion tons of emissions in 2010 and 4.1 billion in 2025, with 4.6 billion projected for 2026. About 10% of the car fleet was electrified in 2025, or 6% excluding hybrids. In 2025, 59 countries emitted less than in 2019 while their economies grew. China accounts for 32% of global fossil emissions and about half of the emissions avoided through renewables and EVs. India is projected to rise 4.4%.

For energy abundance, this is evidence that cheap clean generation is starting to absorb growth in demand rather than just sit beside fossil supply. A companion paper projects that through 2028, new solar, wind and EVs will offset 64%–79% of emissions from new energy demand. That paper is in press in a separate journal and is not yet published.

The caveats are large. The authors say clean energy growth is not yet fast enough for a durable decline, and that a fall driven partly by geopolitical shocks is not a sustainable solution. One year's dip is not a peak. Total CO₂ including land-use change is projected to rise to 43.3 billion tons from 42.8 billion, and the remaining 1.5°C budget of 150 billion tons is under four years at current rates. Watch the powerful 2026 El Niño's effect on the land sink next year. All 2026 figures are projections.

Source: Phys.org