Major Methane Leaks Uncovered: A Global Climate Concern

In 2025, an analysis by the Stop Methane Project at the University of California, Los Angeles (UCLA) revealed significant methane leaks from oil and gas facilities worldwide, with a particularly alarming concentration in Turkmenistan. These mega-leaks, which have a climate impact equivalent to that of coal-fired power stations, are primarily attributed to inadequate maintenance and management practices. Methane, a potent greenhouse gas, is responsible for approximately 25% of global heating today, and its emissions have surged since 2007, raising concerns about potential climate tipping points.

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The UCLA study identified 4,400 significant methane plumes in 2025, each emitting over 100 kilograms of methane per hour. Notably, the largest leak was detected in Texas, operated by Energy Transfer, releasing 5.5 tonnes of methane per hour, equivalent to the emissions from about one million SUVs. Other countries with multiple mega-leaks included Venezuela and Iran, with five and three leaks, respectively. The analysis also highlighted that poorly managed landfill sites contribute to methane emissions globally, with problematic sites identified from Turkey to Algeria and Malaysia.

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Experts emphasize the urgency of addressing methane emissions, describing it as the "climate emergency brake" due to its relatively short atmospheric lifespan compared to carbon dioxide. Cara Horowitz from UCLA expressed frustration over the lack of action, stating that simple infrastructure upgrades could significantly mitigate these emissions. The findings serve as a wake-up call for public and political action, particularly in the United States, where the perception of clean industry practices is challenged by the data.

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While Turkmen officials claimed progress in reducing methane leaks, stating that repairs were being conducted swiftly, the UCLA analysis indicates that substantial leaks persist. Horowitz cautioned European buyers of Turkmen gas to consider these findings seriously, framing it as a "buyer beware" moment as the EU implements stricter methane regulations for imported gas. Mary Nichols, former chair of the California Air Resources Board, highlighted the need for accountability, asserting that new satellite technology can help identify responsible countries and companies.

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Critics argue that the slow response to methane leaks is unacceptable, especially given the potential for rapid mitigation. The lack of engagement from major companies, including Energy Transfer and state-owned enterprises in Turkmenistan, Venezuela, and Iran, raises questions about industry accountability and commitment to environmental standards.

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• “Methane is a more powerful climate villain than any other air pollutant because it acts quickly and is emitted in large volumes. It is also relatively cheap and easy to control. New, detailed satellite pictures can help target the countries and companies that need to be held accountable.” — Mary Nichols, former chair of the California Air Resources Board

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• “We in the US tend to think of our industry as fairly well and cleanly run, but this shows that we still have work to do.” — Cara Horowitz, UCLA

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The findings from the UCLA analysis underscore the critical need for immediate action to address methane emissions, highlighting both the environmental impact and the potential for relatively simple solutions.

The Guardian