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Fossil CO₂ emissions projected to decrease in 2026 amid clean energy growth and Iran conflict

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Science Desk

In Short: Global carbon dioxide emissions from fossil fuels are expected to decline slightly in 2026, partly due to disruptions caused by the Iran conflict and the expansion of clean energy.

Flag of Iran
Flag of Iran (Wikimedia Commons)

Fossil Fuel Emissions Set for Slight Fall in 2026, Researchers Say. World News Checked

At the COP31 climate meeting in Antalya, Turkey, on Tuesday, the Global Carbon Project released a study projecting that carbon dioxide emissions from fossil fuels will decrease by 0.4% in 2026, to 38.2 billion tonnes, compared to 38.4 billion tonnes in 2025.

The projected decline is attributed to a slump in emissions from oil due to the Hormuz trade and energy price shock, as well as growing solar and wind power generation.

According to the Global Carbon Budget, emissions from natural gas are set to decline by 0.3%, while emissions from coal are expected to rise by 0.6% from last year, as soaring LNG prices prompt many countries, especially in Asia, to increase coal-fired power generation.

The dip in fossil fuel carbon emissions is partially offset by a rise in emissions from land-use change, such as deforestation, pushing total CO2 emissions up to a projected 43.3 billion tonnes this year, from 42.8 billion in 2025.

The expected marginal decline in CO2 emissions from fossil fuels this year would be the first since 2020, when the COVID-19 pandemic had resulted in a 2% drop, the biggest year-on-year decline measured so far.

Global renewable electricity capacity is projected to increase by nearly 4,800 gigawatts between 2026 and 2031, according to the International Energy Agency, as concerns about energy security and volatile fossil fuel prices accelerate investment in solar, wind, and other domestic power resources.

Researchers caution that the transition to cleaner energy is not happening quickly enough to guarantee a lasting reduction in fossil fuel emissions, with the energy transition currently not big enough to get emissions heading downward yet.

The analysis found national fossil fuel plans would result in 460% more coal, 83% more gas, and 29% more oil production in 2030 than the world can afford to burn on its increasingly miniscule 1.5 C carbon budget.

The report, compiled by the United Nations Environment Programme (UNEP) in collaboration with academic partners, scrutinized the plans of the 20 largest fossil fuel-producing countries, responsible for 84% of global carbon emissions and roughly three-quarters of the world’s fossil fuel consumption in 2021.

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The study emphasizes the need for a more rapid transition to cleaner energy sources to ensure a sustainable reduction in fossil fuel emissions.

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