TL;DR — Black carbon is indeed a short-lived climate pollutant (SLCP). It rapidly warms the atmosphere by absorbing sunlight and accelerating ice/snow melt, posing immediate threats to climate stability and public health. Its major sources include diesel engines, coal-fired stoves, and certain agricultural practices. Cutting black carbon emissions through cleaner fuels, advanced diesel technology, and improved agricultural methods can quickly reduce near-term warming and improve air quality.