IEA forecast: 1.5-degree target still achievable with significantly higher investment

Solar park in China: The boom in renewables will continue in the coming years. (IMAGO / Xinhua)

The World Energy Outlook 2025 shows that the world is currently heading towards a warming of 2.5 degrees despite rapid growth in renewables. In order to limit the increase to 1.5 degrees, investments would have to be doubled.

Malte Kreutzfeldt

Last updated: 12. November 2025

Energy transition COP30 IEA

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IEA forecast: 1.5-degree target still achievable with significantly higher investment

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