In 2011, British scientists planned a groundbreaking geoengineering experiment to spray water 1 km into the atmosphere for climate research, but the project was ultimately canceled due to patent disputes and the absence of international testing rules. This cautionary tale reflects ongoing struggles with solar geoengineering efforts, reminiscent of a similar failed project at Harvard University in 2024.

In 2011, British scientists planned a groundbreaking geoengineering experiment to spray water 1 km into the atmosphere for climate research, but the project was ultimately…

In 2011, a team of British researchers prepared to carry out what would have been one of the first outdoor tests of solar geoengineering equipment anywhere in the world, a plan to…