The yearly loss of methane by this reaction currently amounts to about 507 Tg (where 1 Tg, or teragram, is 1012 g—1 million metric tons), and the net sink from all processes amounts to about 577 Tg per year.
The other two sinks for methane gas are its reaction with soil and its loss to the stratosphere, to which a few percent of emissions eventually rise. Methane reacts there with OH, or atomic chlorine or bromine, or excited atomic oxygen; reaction with the latter produces hydroxyl radicals and eventually water molecules:
Continue reading here: Ch4oh ci i
Was this article helpful?