Black carbon (BC) is a component of fine particulate matter of the size 2.5 μm. It consists of pure carbon, which originates from the incomplete combustion of fossil fuels, coal, biofuel, biomass, wood, rubber, etc. It is emitted in the form of soot.
Soot is an airborne mass of impure carbon particles resulting from the incomplete combustion of hydrocarbons. It originates from pyrolysis.
Brown carbon is brown smoke released by the combustion of organic matter. It coexists with black carbon when released in the atmosphere.
It is one of the significant warming factors as it disturbs the temperature pattern of the atmosphere and the cloud forming process. It also changes the solar absorption pattern and the nature of clouds.
It is the carbon captured by the world’s oceans and coastal ecosystems. This carbon is captured by living organisms in oceans is stored in the form of aquatic biomass. Seagrasses, mangroves, and marshes are types of vegetated coastal blue carbon ecosystems, these habitats have a cover of approximately 49 million hectares worldwide. Blue carbon ecosystem act as the major sink for capturing atmospheric carbon and reducing warming effects.
It is the carbon captured into terrestrial plant biomass in photosynthesis and stored in the plants and soil of natural ecosystems and is a vital part of the global carbon cycle.
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