"The researchers state that this is a simplified thought exercise to explore these questions. It leaves out of other factors like sea-level rise, glosses over uncertainties about environmental side effects, and assumes high levels of emissions and geoengineering. Moreover, even if things wound up better on average, it still wouldn’t mean that all poor nations would come out ahead."

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Harding, Anthony R.; Ricke, Katharine; Heyen, Daniel; MacMartin, Douglas G.; Moreno-Cruz, Juan (2020): Climate econometric models indicate solar geoengineering would reduce inter-country income inequality. In Nat Commun 11 (1), pp. 1–9. DOI: 10.1038/s41467-019-13957-x.

"Combining historical evidence with climate simulations of mean annual temperature and precipitation, we project socio-economic outcomes under high anthropogenic emissions for stylized climate scenarios in which global temperatures are stabilized or over-cooled by blocking solar radiation. We find impacts of climate changes on global GDP-per-capita by the end of the century are temperature-driven, highly dispersed, and model dependent. "

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Stephens, Jennie C.; Surprise, Kevin (2020): The hidden injustices of advancing solar geoengineering research. In Global Sustainability 3. DOI: 10.1017/sus.2019.28.

"Solar geoengineering research advances an extreme, expert–elite technocratic intervention into the global climate system that would serve to further concentrate contemporary forms of political and economic power. For these reasons, we argue that it is unethical and unjust to advance solar geoengineering research."

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Gardiner, Stephen M.; Fragnière, Augustin (2019): Geoengineering, Political Legitimacy and Justice. In Ethics, Policy & Environment 21 (3), pp. 265–269. DOI: 10.1080/21550085.2018.1562524.

"The aim of this special issue is to move forward the normative discussion of political legitimacy and justice specifically. Our starting assumption is that it would be unwise to proceed with particular technologies and develop governance systems without at the same time addressing hard questions about justice and legitimacy. One reason for this is that clarifying the central normative questions is key to understanding obstacles to, parameters for, and constraints on research, policy and governance. In particular, it matters for policy if some kinds of geoengineering turn out to be easier from the point of view of justice and legitimacy than others."

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