newsCarbon Brief
Analysis: Fossil-fuel CO2 emissions set to dip in 2026 as Iran conflict hits oil use
Carbon dioxide emissions from fossil fuels and cement are projected to fall about 0.4% in 2026, to 38.2 billion tonnes, according to the Global Carbon Project's annual budget. Oil emissions drop 1.9%, largely because the Iran conflict and closure of the Strait of Hormuz caused an energy shock, while coal rises slightly. China, the US and the EU fall (by 0.9%, 1.3% and 1.5%) but India rises 4.4%. Land-use emissions are up, driven by peat fires linked to El Niño, so total emissions hit a record 43.3 billion tonnes. The range is uncertain: from a 1.5% fall to a 0.6% rise.
Emissions depend on how much energy the world uses and how clean it is. Clean power is growing fast, but demand is growing too, so a price shock to oil can tip the yearly total either way.
The dip is mostly an accident of a fuel crisis, not a sign emissions have peaked. Related research finds solar, wind and electric vehicles now offset around two-thirds of the emissions that rising energy demand would add, but not yet enough to produce a lasting decline.
Previous dips, such as in 2020 during the Covid lockdowns, were temporary and followed by rebounds.
The Global Carbon Project has published its carbon budget every year since 2006.
Carbon Brief · CC BY-NC-ND 4.0
Illustrative photo · Authors of the study: Pierre Friedlingstein, Michael O'Sull…, CC BY 4.0, via Wikimedia Commons
