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For years, Asian governments pledged to move away from coal. Net-zero roadmaps, renewable energy targets, and international climate commitments signaled what many believed was the beginning of the end for the world’s dirtiest fossil fuel.
Then came the Iran war.
What began as a geopolitical conflict has rapidly evolved into one of the most disruptive global energy shocks in recent history. As oil shipments slowed, liquefied natural gas (LNG) prices surged, and the Strait of Hormuz became increasingly unstable, countries across Asia were forced into emergency energy measures. The immediate response was not a dramatic acceleration toward green energy — it was a return to coal.
Across South Korea, India, Bangladesh, Vietnam, Japan, and the Philippines, governments have delayed coal plant closures, increased imports of thermal coal, and expanded fossil fuel generation to prevent blackouts and economic disruption. Environmental experts warn the consequences could be severe, both for climate goals and for public health.
The crisis has revealed a difficult reality: when energy security is threatened, many economies still fall back on the fuels they promised to abandon.
Asia’s Energy Emergency
Asia remains one of the most energy-dependent regions in the world, heavily reliant on imported oil and LNG from the Middle East. When conflict around Iran disrupted major supply routes, particularly through the Strait of Hormuz, energy markets reacted instantly.
Spot LNG prices in Asia reportedly surged by more than 60% within weeks, forcing utilities and governments to seek cheaper and more reliable alternatives.
Coal, despite its environmental cost, quickly became the fallback solution.
According to reports, South Korea delayed the planned shutdown of coal-fired plants, while the Philippines moved to increase output from existing coal facilities to stabilise electricity supplies. India instructed coal plants to operate at maximum capacity, and Bangladesh expanded coal imports to keep its grid functioning during peak demand.
Vietnam, already facing heatwave-driven energy demand, recorded some of its highest coal-fired power generation levels on record.
The pattern is becoming increasingly clear across the region: governments are prioritising energy reliability over emissions targets.
Why Coal Is Returning So Quickly
The speed of coal’s resurgence highlights the structural weaknesses in Asia’s energy transition.
Renewable energy capacity has grown substantially across the region over the past decade, but many countries still lack large-scale battery storage, resilient grids, or enough renewable infrastructure to fully replace fossil fuels during a supply shock.
Coal, meanwhile, remains relatively cheap, abundant, and already integrated into national power systems.
For policymakers facing the prospect of widespread blackouts, economic disruption, and political instability, coal offers immediate short-term stability — even if it undermines long-term climate goals.
The Iran conflict has also exposed the vulnerability of LNG-dependent economies. Countries like Japan and South Korea invested heavily in gas as a “transition fuel,” believing it would serve as a cleaner bridge between coal and renewables. But gas markets remain globally interconnected and highly exposed to geopolitical disruption.
Once LNG prices spiked and shipments slowed, coal suddenly became economically attractive again.
Energy analysts say the situation demonstrates how fragile global energy supply chains remain, especially when concentrated around major geopolitical chokepoints.
The Environmental Cost
The environmental consequences of this shift could be devastating.
Coal remains the single largest contributor to global carbon emissions. It also produces significant levels of particulate pollution, sulphur dioxide, and toxic heavy metals linked to respiratory disease, cardiovascular illness, and premature deaths.
Climate experts warn that even a temporary increase in coal usage could have lasting impacts on global emissions trajectories.
Asia already accounts for a substantial share of global coal consumption. Any prolonged expansion of coal generation risks derailing international climate targets at a time when scientists are warning that the world is running out of time to limit warming.
Environmental groups have criticised governments for responding to the crisis with fossil fuel expansion rather than accelerating renewable energy investment.
Some campaigners argue the current crisis should instead serve as proof that renewable energy offers greater long-term security because wind and solar power are not dependent on unstable shipping routes or international fuel markets.
The irony is difficult to ignore: a war-driven fossil fuel crisis is pushing nations deeper into fossil fuel dependency.
Shipping and Industrial Impacts
The energy disruption is not only affecting electricity generation.
The shipping industry is also facing severe pressure as bunker fuel supplies tighten across Asia. Singapore, the world’s largest maritime refuelling hub, has reportedly seen bunker fuel prices soar amid fears of prolonged shortages.
Shipping companies are slowing vessels, rerouting cargo, and increasing freight costs — expenses that could eventually reach consumers worldwide.
Meanwhile, Asian refineries are struggling with reduced crude supply. Reuters reported that refinery throughput in Asia has fallen sharply, creating growing risks for diesel and jet fuel shortages.
These disruptions threaten manufacturing, aviation, tourism, and food supply chains throughout the region.
For developing economies already dealing with inflation and post-pandemic economic pressures, the crisis could deepen financial instability and increase poverty rates.
The United Nations has warned the energy shock could push millions more people into poverty across the Asia-Pacific region if disruptions continue.
A Political Wake-Up Call
Despite the immediate return to coal, the crisis may ultimately accelerate long-term energy transformation.
Several leaders have begun openly acknowledging the risks of overdependence on imported fossil fuels.
South Korean President Lee Jae Myung reportedly described fossil fuel dependence as “extremely risky” in light of the Iran conflict and renewed calls for faster renewable deployment.
Across Asia, governments are now reassessing energy diversification strategies, including nuclear expansion, domestic renewable manufacturing, battery storage investment, and regional energy cooperation.
The conflict has also intensified conversations about strategic energy independence.
Countries increasingly recognise that energy security is no longer only about supply — it is about resilience.
The nations best positioned for the future may be those capable of generating stable domestic renewable power rather than relying heavily on imported fossil fuels vulnerable to geopolitical shocks.
The Contradiction at the Heart of the Climate Transition
The current crisis reveals one of the biggest contradictions in global climate policy.
Governments want rapid decarbonisation, but political systems still prioritise immediate economic stability above long-term environmental goals. When energy markets collapse or prices surge, short-term survival often overrides climate commitments.
That tension is now unfolding across Asia in real time.
Coal plants once scheduled for retirement are being extended. Fossil fuel imports are rising. Emissions are likely increasing again.
At the same time, the crisis may also reinforce the argument for faster renewable expansion, smarter grids, and energy independence built around sustainable infrastructure rather than volatile fuel imports.
The question is whether governments will treat this crisis as justification for more fossil fuels — or as a warning about the dangers of remaining dependent on them.
Right now, Asia is burning more coal to survive the present.
But the long-term consequences of that decision could shape the global climate future for decades.
References and Sources
- The Guardian – Asia ramps up use of dirty fuels to cover energy shortfall triggered by Iran war
- Reuters – Top Asian LNG markets boost coal use as Iran war limits supply
- Reuters – Asia deepens refining cuts due to Iran war
- Associated Press – Asia braces for a second wave of energy shocks from the Iran war
- Associated Press – Shipping industry fears fuel shortages as Iran war squeezes bunker fuel supply
- The Guardian – How Trump’s Iran war could make the world more reliant on coal
- Carbon Brief – EU warns of prolonged disruption amid Iran energy shock
