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Global Energy Review 2026 CO2 emissions
Energy sector emissions continued to rise in 2025, but regional trends varied markedly Global growth in energy-related CO2 emissions slowed in 2025, rising by around 0.4%, the slowest rate since 2021. Despite this slowdown, total energy-related CO2 emissions increased by around 145 million tonnes (Mt) in 2025, reaching a new high of nearly 38.4 billion tonnes (Gt), and 5% above 2019 levels. The increase coincided with record atmospheric CO2 concentrations of about 427 parts-per-million (ppm), roughly 2.4 ppm higher than in 2024 and around 50% above pre-industrial levels.Emissions from fuel combustion…
- Key findings
- Global trends
- Oil
- Natural gas
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+ 9 pages
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Sue-Ern Tan
Head of the IEA Regional Cooperation Centre. Sue-Ern Tan is the Head of the IEA Regional Cooperation Centre established in Singapore at the end of 2024. The Office is the first outside of the IEA’s Paris headquarters in its 50-year history and will provide policy guidance, technical assistance, training and capacity building across areas such as scaling-up the deployment of renewables and other clean energy technologies, increasing cross-border power trade, and improving access to finance for clean energy investment.Prior to joining the IEA, Ms Tan worked at Shell plc in senior climate and energy roles at Shell’s headquarters in London and The Hague and most recently in Singapore as the Head of Policy and Advocacy. Ms Tan practiced as a lawyer, worked as Ministerial adviser on energy in the Australian Government and was the Deputy CEO of a minerals trade association in Australia. She graduated from University of New South Wales in Australia with a Commerce and Law Degree and is an Eise...
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Energy Management for Industry Executive summary
Energy management programmes help achieve efficiency targets and meet policy objectives Recent global upheavals and uncertainties are putting increasing pressure on businesses around the world. This is prompting governments to look more and more to energy efficiency to promote industrial competitiveness, increase resilience of businesses, protect jobs, reduce strain on grids, and enhance energy security. Providing government-led energy management programmes or policy packages for industry is one of the quickest and most cost-effective ways of ensuring fast and continual energy efficiency implementation. By encouraging and supporting companies to adopt energy management, governments can help ensure energy demand reductions…
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Sustainable Transport Policy for Armenia: A Roadmap Accelerating sustainable transport
Amid a rapidly changing energy landscape and mounting environmental pressures, Armenia faces both an urgent challenge and an opportunity to reshape its transport system. As it seeks to balance the twin goals of enhanced energy security and reduced dependence on imported fossil fuels, Armenia has made the transition to sustainable transport a top priority.This chapter lays out a forward-looking framework designed to accelerate Armenia’s shift to an efficient, low-carbon and resilient transport system. Drawing on international best practices, the recommendations focus on three interconnected priorities: electrifying the road transport fleet, boosting overall transport system efficiency and…
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Buildings
Buildings
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Energy Efficiency 2025 Buildings
How and where is energy used? Total final consumption in 2024 was over 450 EJ and has grown by around 25 EJ since 2019. Buildings account for around 30% of global energy demand and have contributed around 20% of the growth in total demand since 2019. The residential sector makes up about 70% of total energy demand in buildings, while the remaining 30% is used in commercial and public buildings.In advanced economies, most energy in homes is used for space and water heating, together accounting for about 70%. This is followed by the use of electrical appliances, such as refrigerators, televisions…
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The Middle East and Global Energy Markets
The IEA is responding to the energy market impacts of the conflict in the Middle East and continues to closely monitor the latest developments.The disruption to oil and gas flows through the Strait of Hormuz and attacks on energy infrastructure across the region have major implications for energy security and affordability – and for the world economy. The IEA's Executive Director has said the combined impacts amount to "the greatest threat to global energy security in history." The war in the region that began on 28 February has impeded energy trade flows through the Strait, creating the largest supply disruption in…
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Unlocking Ukraine’s Hydrogen Opportunity: A Roadmap The hydrogen opportunity
Highlights Ukraine has 18-38 Mtpa of technical renewable hydrogen potential, though economic constraints would result in lower potential. Most potential is in regions with scarce water resources and competition from other industrial activities. Domestic demand for use for steel and fertilisers could reach 2.2 Mtpa, if pre-invasion capacity is restored, and the government target has set a target of 7.2 Mtpa of production by 2050. Most hydrogen production projects proposed prior to the invasion are close to the border with the European Union.Ukraine has a technical potential for solar PV and onshore wind equivalent to 9‑14 times its pre…
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Sheltering From Oil Shocks Air transport fuels
Jet fuel demand accounts for around 7% of global oil demand. Jet fuel markets look to be particularly vulnerable to an extended loss of Middle East production and exports, given limited flexibility elsewhere to increase output. 8. Avoid air travel where alternative options exist Description: Travel for work accounts for a large share (between 20% and 40%) of aviation activity. In many cases, travel for work can be temporarily substituted by virtual meetings. A reduction of around 40% of flights taken for work purposes is feasible in the short term, while maintaining productivity.Impact: Very high voluntary participation to work…
