Researchers Project 0.4 Percent Drop in Global Fossil Emissions

Global fossil fuel emissions are projected to fall 0.4 percent in 2026, to 42.1 billion U.S. tons of carbon dioxide, according to the Global Carbon Project, an international collaboration that publishes yearly emissions reports. It would be the first decline since 2020, when pandemic lockdowns cut emissions by an unprecedented 7 percent, Smithsonian Magazine reported.

The 2026 drop is much smaller, and the researchers say it will not last without faster growth in clean energy.

Where the decline comes from

The team points to two causes. Solar and wind power keep growing, and an oil price surge and supply chain problems followed the war between the United States and Israel on one side and Iran on the other. Officials closed the Strait of Hormuz, a major chokepoint for oil shipments. That conflict and the Russia-Ukraine war pushed oil and gas prices up worldwide, and the New York Times reported that many countries turned to domestic fossil or renewable energy as a result.

The researchers call the effect an energy shock, a short-term response to the war in Iran.

By fuel, the projections are:

• Oil emissions fall 1.9 percent.
• Gas emissions fall 0.3 percent.
• Coal emissions rise 0.6 percent. Burning coal produces more pollution than oil or gas.

Country figures

China produces around one-third of the world’s fossil emissions, the most of any country. Its emissions fell overall this year despite a small increase in coal pollution. The report credits China’s role in the clean energy transition: it accounts for half of the global emissions avoided through renewable energy and electric vehicles.

In the United States, the second-largest emitter, the researchers project a 1.3 percent decrease in 2026. They attribute most of it to lower coal emissions after a spike last year, when natural gas prices were high and the weather was cold. Emissions from the rest of the world are projected to fall 0.7 percent, driven largely by lower oil use.

How firm the numbers are

The findings are projections. The team described them in a report released Nov. 10 in the journal Earth System Data Science. The report is a preprint, which means it has not been peer-reviewed. Some of the scientists also published a separate analysis in the journal Nature Climate Change.

Glen Peters, a climate scientist at the Center for International Climate Research in Norway and a co-author, told the New York Times he would call the result “unexpected.” He said a drop in oil demand this large is rare.

Why it matters

A fall in emissions caused by price shocks and supply disruptions can reverse when those pressures ease. Pierre Friedlingstein, a climate scientist at the University of Exeter in England and co-author of the report, said in a statement that a decline driven partly by geopolitical shocks is not a sustainable climate solution. He said renewables and electric vehicles are increasingly offsetting growth in energy demand, but that further acceleration is needed before global emissions can peak and begin a sustained decline.

The Nature Climate Change analysis estimates that renewable energy strategies should offset 64 to 79 percent of rising emissions from now through 2028. That leaves the transition short of covering the expected increase from growing energy demand.

Mike O’Sullivan, a climate scientist at the University of Exeter and a co-author of the report, told Time there is plenty of good news in the rapid expansion of renewables. On a global scale, he said, it is “completely inadequate.”

Source: Smithsonian Magazine