- Scientists are considering technological interventions like cloud brightening and space mirrors to mitigate climate crises.
- Geoengineering initiatives have been proposed throughout history, including the 1930s Atlantropa project to dam the Strait of Gibraltar.
- Soviet plans aimed to warm the climate by damming the Bering Strait and excavating seabed ridges.
- Some proposals involved using hydrogen bombs to melt Arctic ice or divert rivers with nuclear explosions.