Category Archives: Popular Science

The Soot Surveyor

In the atmosphere, soot traps heat like carbon dioxide does. But unlike CO2, soot stays near its source and falls to Earth in weeks, so it’s considered low-hanging fruit in the fight against global warming. The first step to reducing atmospheric soot is to find it, which scientists have been doing since the 1980s with a particle-measuring tool called an aethalometer. Continue reading The Soot Surveyor