Yale Environment 360: Climate models are underestimating the effects of so-called brown carbon from sources such as forest fires because the models do not account for regional factors such as areas where wood-burning stoves are common when estimating brown carbon's climate-warming impacts. Black carbon, primarily from urban combustion sources like vehicles and factories, absorbs the most sunlight, the researchers explain, and it's well-accounted for in climate models. However, most models don't properly account for...