One technique involves releasing particles of sulphur dioxide high up in the stratosphere. Another involves trying to brighten the clouds over the sea by spraying salt water off the back of ships.

The agency is being asked to strengthen a toothless rule that requires only a heads-up before experiments to modify the weather. Picture this: As a Phoenix heat wave is killing hundreds of people, an ...

Deliberately reflecting sunlight into space to cool the planet—solar radiation modification (SRM)—is now under serious exploration/investigation as a solution to ...

'Atmospheric geoengineering' is one of the most divisive areas in climate policy, science, and ethics ...