30+ Nations Push Clean Energy Amid Iran War, But Emissions Still Rise

For climate and energy professionals, the signal in this data is clear: the Iran war has accelerated policy adoption for renewables and efficiency, but acceleration in policy has not yet become decarbonization in the atmosphere. With 30-plus governments acting and emissions still ticking upward, the sector faces a credibility gap between announced ambition and measurable climate outcomes.

The war that began when the United States and Israel launched military action against Iran in February 2026 was initially framed by some renewable-energy advocates as a potential accelerant for the energy transition: oil and gas prices spiked, and the economic logic of solar, wind, and efficiency improvements sharpened. Seven months later, The Associated Press review of policy and investment data finds a more ambiguous picture. More than 30 governments have enacted policies to move away from fossil fuels or improve energy efficiency, yet global greenhouse gas emissions increased slightly and clean-energy investment fell in the first half of 2026 compared with the same period last year. The result is not a simple wartime green dividend, but an uneven and contradictory period in which governments are simultaneously expanding clean power and doubling down on fossil fuel infrastructure.

“

In contrast, the United States, Europe, and India, whose economies are more exposed to oil and gas price movements, saw solar investment grow and wind investment hold steady.

Pauline Heinrichs, a war studies lecturer at King's College London, captured the tension: "Governments are currently doing a dance between acknowledging the importance of clean power while continuing to support fossil fuel expansion. We are seeing an old and a new world interact in contradiction with each other." That contradiction is visible in the United Kingdom, which has experienced a surge in solar installations while the government also considers expanding natural gas production. In Indonesia, diesel plants are being replaced by solar in some areas, while heavy industry continues to rely on a doubling down on coal. Asia's broader demand for solar power and electric vehicles remains massive, but the region's energy systems remain intertwined with coal and gas.

Rhodium Group's Clean Investment Monitor provides the clearest quantitative signal. Global investment in wind and solar deployment fell in the first half of 2026 compared with the same period in 2025, ending several years of growth. China accounted for most of the global decline, reflecting the scale of its clean-energy supply chain and the sensitivity of its deployment pipeline to policy and domestic financing conditions. In contrast, the United States, Europe, and India, whose economies are more exposed to oil and gas price movements, saw solar investment grow and wind investment hold steady. This regional divergence matters: it suggests that the Iran war's price shock is pushing energy-importing economies toward clean power, while China's investment pullback weighs down global totals and obscures that underlying momentum.

Yet the emissions data caution against declaring a climate breakthrough. Global greenhouse gas emissions increased slightly during the same period, according to the AP's synthesis of expert assessments. New clean-energy policies take years to translate into lower emissions because power plants, industrial processes, and vehicle fleets turn over slowly. In the meantime, continued support for natural gas, coal, and other fossil fuels can offset gains from solar and efficiency. The AP spoke to a dozen experts who generally agreed that the war appears to be helping the adoption of clean energy, but that the world remains heavily dependent on fossil fuels and that policy results will lag.