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The pilot study, conducted by the University of Siena, surveyed experts in Belgium and France across two waves between December 2023 and December 2024. Findings indicate high expert support for renewable energy, green hydrogen, and energy storage, while support for blue hydrogen, gas, coal, and oil remains low. There is a strong consensus that the economic benefits of clean technology investment outweigh short-term costs. While a majority of experts believe governments should do more to address climate change, the perceived importance of climate change as a top issue for voters decreased over time, particularly in Belgium, as concerns over defense and security increased.