Again, that doesn't tell the whole story. As we've discussed, solar research predates the episode by quite a long time, and Carter's efforts were not just about the energy crisis, but also about setting the foundation for future pro-environmental efforts (which were not necessarily about climate change at the time, but that certainly bled into those concerns later on). Your characterization seems to try to make Reagan's later actions seem more rational, when they very well may not have been based on anything but his disdain for his predecessor and his policies. We don't really know.

https://yaleclimateconnections.org/2008/11/jimmy-carters-sol...