A new UN report lays out an ethical framework for climate engineering

The framework could guide the study and deployment of technologies to mitigate climate change

An upright weather balloon sits on a snowy landscape, surrounded by people and vehicles

In 2021, researchers studying the possibility of releasing aerosols to cool the climate planned a test flight of a stratospheric balloon, such as the one shown, from the Esrange Space Center in Sweden. The launch was canceled due to objections from environmentalists, scientists and Indigenous groups.