Scientists have a radical plan to cool Earth—Dim the Sun

The UK government plans solar geoengineering trials to address climate change. The Advanced Research and Invention Agency will fund experiments testing aerosol injection and cloud brightening to reflect sunlight. With $66.5 million allocated, the UK is becoming a major funder of this controversial research. As global warming nears critical tipping points, experts argue exploring all options is necessary, despite risks like "termination shock." Evidence from volcanic eruptions supports the potential effectiveness of these strategies.