Isotopic analysis points to natural or human-caused microbial sources as the source of between 364 million to 419 million tons of methane per year, or 58 to 67 percent of methane released to the atmosphere each year.
Jd Gonzalez wrote:I am still in shock. Is this for real?
Probably, but what is left of that chart is the amount of methane captured as a result of the microbial activity. For example, cows produce a lot of methane, but their poop feeds grass which then absorbs the methane.
Termites for example produce more methane than cows. However when looking at microbial emissions or termites, these are natural processes that have been going on for ages. There are natural counter balances to these that off set the emissions.
As John mentioned there is a cycle of emissions and sinks. Where things get bad is when we produce emissions without having a sink, or worse after destroying large amounts of sinks like in the deforestation prior to industrial age. In this sort of issue we destroy natural sinks then ramp up emissions to insane amounts. Thus the problem we are now facing.
"Where will you drive your own picket stake? Where will you choose to make your stand? Give me a threshold, a specific point at which you will finally stop running, at which you will finally fight back." (Derrick Jensen)