Direct, large-scale solar management interventions have been part of the fringe of the climate debate for decades. To critics, they were seen as a speculative excuse for not doing the hard work of reducing carbon emissions. It was thought that even asking whether these interventions could be considered created a moral hazard. But the argument that the sole focus should be on greenhouse gas emissions has run into the reality that reduction has been too slow. Is it time to reconsider climate interventions?

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