Critical material availability for renewables energy deployment is the new trend observed currently worldwide in addition of geoengineering to reach carbon neutrality. Terawatt scale for photovoltaic is a big step reached in 2022 for the renewable sector, while the massive batteries deployment raises new technologies issues.
What are the solutions to mitigate the material scarcity and hence reduce the risk of shortages? What are the main controversial aspects of geoengineering? This two global trends are studied and explained technology by technology in our 2023 edition.
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