The 2015 report “Climate Intervention: Reflecting Sunlight to Cool Earth” says existing instruments aren’t precise enough to measure albedo change from such a project, and measuring its climate impact is even more tricky. That also makes small-scale experimentation difficult. Basically you’d have to go to 100% and then hope that it worked. As someone who ran many A/B tests, that makes me hesitant to press the button until we have better ways to measure the impact.
The 2015 report “Climate Intervention: Reflecting Sunlight to Cool Earth” says existing instruments aren’t precise enough to measure albedo change from such a project, and measuring its climate impact is even more tricky. That also makes small-scale experimentation difficult. Basically you’d have to go to 100% and then hope that it worked. As someone who ran many A/B tests, that makes me hesitant to press the button until we have better ways to measure the impact.