Instead, we are looking at an entire continuum where there is strong light absorption by organic carbon, or dark brown carbon ... for the unexpected effects of brown carbon in wildfire smoke.

“‘Dark brown carbon ... emphasize black carbon’s warming effect over organic carbon. Sunlight can bleach light-absorbing organic aerosols such as brown carbon, causing it to lose its ...

To make brown sugar, as HowStuffWorks explains, some molasses is either left in the sugar crystals—or it’s re-added after the fact. The difference between light and dark brown sugar boils down ...