These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.

这些反应增加了不完全燃烧的可能性，更有可能释放未燃尽和光化学活性碳氢化合物到大气中。

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The problem is incomplete combustion.

燃料的不完全燃烧是主要问题。

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Black carbon is produced from the incomplete combustion of wood, biomass such as crop residues and fossil fuels.

炭黑是由木头、诸如作物残余等生物质以及化石燃料不充分燃烧产生的。

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First, when released into the air as a result of incomplete combustion (from sources as varied as badly serviced diesel engines and forest fires), soot particles absorb sunlight, and so warm up the atmosphere.

FORBES: Soot and CO2 In The Arctic