US researchers, backed by the University of Washington, have conducted a covert 'cloud brightening' experiment aimed at climate change mitigation.

The technique involves dispersing salt particles into the atmosphere to increase cloud reflectivity and decrease solar heat absorption.

The US government, while funding climate intervention research, officially distanced itself from this specific experiment in California.

There is widespread concern over the unpredictability of climate response and the risk of unintended ecological consequences.

Environmental groups and critics like Greenpeace International express skepticism and caution regarding the long-term effects of altering solar radiation.

The UN Environmental Programme recommends against large-scale solar radiation modification, stressing the importance of reducing greenhouse gas emissions.

Nevertheless, the US continues to explore solar radiation modification technologies as a potential supplement in addressing climate change.