Injecting solid particles into the stratosphere could mitigate global warming but currently entails great uncertainties. - Vattioni S; Peter T; Weber R; Dykema JA; Luo B; Stenke A; Feinberg A; Sukhodolov T; Keutsch FN; Ammann M; Vockenhuber C; Döbeli M; et al. (Communications earth & environment, 2025)