 In this study, we compared the response of four Earth system models to climate engineering under scenario G1 of two model intercomparison projects, GOMIP, geoengineering model intercomparison project, and IMPLIC, EU project implications and risks of engineering solar radiation to limit climate change. Under scenario G1, the radiative forcing from an instantaneous quadrupling of carbon dioxide levels was balanced by a reduction of the sun's energy output. The results showed that while the global mean surface air temperature remained relatively stable, the meridional temperature gradient was reduced in all models. Additionally, the models exhibited a decrease in precipitation in certain areas, particularly in North and South America and Northern Eurasia. Compared to the climate response to a quadrupling of carbon dioxide levels alone, the temperature responses were small in experiment G1, while precipitation responses were more pronounced and often had opposing signs. This article was authored by M. Lawrence, F. Ben Dunn, A. Ahiem, and others. We are article.tv, links in the description below.