Climate Policy Bearish 7

30% Southeast Asia coal capacity rise threatens climate goals after Iran war

· 3 min read ·
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Key Takeaways

  • The Iran war’s energy disruptions are reversing hard-won climate progress as Asian countries expand coal power capacity by up to 30% by 2030.
  • Record global coal generation and soaring investments signal that energy security is shoving decarbonization aside.

Mentioned

Iran country Strait of Hormuz geography Southeast Asia region Thailand country Vietnam country Philippines country Indonesia country South Korea country Japan country China country India country Sandeep Pai person International Energy Agency organization FutureCoal organization Michelle Manook person Global Energy Monitor organization United Nations organization

Key Intelligence

Key Facts

  1. 1Global coal investments are projected to reach $180 billion in 2026, the highest since 2012, according to the International Energy Agency.
  2. 2Global coal-fired power generation hit an all-time record in 2025, driven primarily by China and India.
  3. 3Southeast Asia’s coal-fired power capacity could increase by 30% by 2030, per the Global Energy Monitor, as nations prioritize energy security.
  4. 4South Korea, Japan, Thailand, Vietnam, and the Philippines all increased coal burning in response to the Iran war’s disruption of oil and gas flows through the Strait of Hormuz.
  5. 5Sandeep Pai of Duke University stated that energy security “triumphs any other climate considerations,” explaining the coal resurgence.
Climate Ambition Outlook

At the end of the day, energy security triumphs any other climate considerations.

Sandeep Pai Researcher, Duke University Nicholas Institute

Commenting on the coal resurgence amid the Iran war

Analysis

For climate and energy stakeholders, the Iran war is a nightmare scenario where geopolitical instability cascades into carbon lock-in. Despite the 2021 Glasgow pact, Asia is now on track to boost coal capacity by 30%, pushing the 1.5°C target further out of reach—a harsh reminder that peace and clean energy are intertwined.

The Iran war and the ensuing closure of the Strait of Hormuz have triggered a profound energy security crisis across Asia, compelling nations from Japan to Vietnam to abandon carefully laid climate plans and double down on coal. The disruption to oil and gas flows from the Middle East has sent price shocks through energy-hungry economies, prompting an emergency shift back to the most readily available and politically secure fuel: coal. South Korea, Japan, and Southeast Asian states like Thailand, Vietnam, and the Philippines have not only temporarily ramped up coal burning but are now embedding longer-term coal reliance into national energy policies. Global coal investments are projected to soar to $180 billion in 2026—the highest level since 2012—while coal-fired power generation hit an all-time record in 2025, driven overwhelmingly by China and India. The geopolitical crisis is effectively extending the lifespan of coal at a moment when the United Nations had recently declared it consigned to history following the 2021 Glasgow climate pact.

South Korea, Japan, and Southeast Asian states like Thailand, Vietnam, and the Philippines have not only temporarily ramped up coal burning but are now embedding longer-term coal reliance into national energy policies.

What to Watch

This regression mirrors the pattern seen after Russia’s 2022 invasion of Ukraine, when European nations hastily built new fossil fuel import terminals and burned more coal to replace disrupted gas supplies. Now, Asia faces its second major energy shock in less than a decade, and the response is unequivocal: energy security trumps climate ambition. Sandeep Pai of Duke University’s Nicholas Institute articulates the prevailing calculus: “At the end of the day, energy security triumphs any other climate considerations.” Southeast Asia’s coal-fired power capacity is now forecast to expand by 30% by 2030, according to the Global Energy Monitor, directly undermining the region’s nationally determined contributions under the Paris Agreement. The promotion of nuclear power and renewables continues, but these longer-lead options cannot compensate for the acute need for baseload power amid the Strait’s closure.

The implications extend far beyond carbon budgets. Global supply chains for everything from manufacturing to digital services will feel the ripple effects of higher and more volatile energy costs, potentially fueling inflation and slowing the energy transition in emerging markets. For climate advocates, the Iran war is a stark reminder that geopolitical stability is a prerequisite for decarbonization. Without secure alternative pathways for energy imports, Asian nations will default to coal, making the 1.5°C target increasingly implausible. The current trajectory suggests that coal’s share in the global energy mix may plateau rather than decline, with 2025’s record generation just the beginning. The IEA’s investment figure points to a structural re-entrenchment of coal, not a temporary blip. As the conflict drags on, the world watches a climate tragedy unfold in real time, where short-term survival imperatives stamp out long-term sustainability pledges.

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