M_B_S wrote:=> CH4 Thread?
https://cbmjournal.springeropen.com/art ... 017-0084-y
Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock
Julie WolfEmail authorView ORCID ID profile, Ghassem R. Asrar and Tristram O. West
Carbon Balance and Management201712:16
https://doi.org/10.1186/s13021-017-0084-y© The Author(s) 2017
Received: 30 May 2017Accepted: 16 August 2017Published: 29 September 2017
Alfred Tennyson wrote:We are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
To Dissident or anyone else who feels they can answer. Can any natural element or factor arrest or stop the continuous additional release of CH4? Or will this methane release process now only stop with the exhaustion of the vulnerable methane stores.?
Cid_Yama wrote:We are trapped within a process that cannot be stopped or reversed.
onlooker wrote:To Dissident or anyone else who feels they can answer. Can any natural element or factor arrest or stop the continuous additional release of CH4? Or will this methane release process now only stop with the exhaustion of the vulnerable methane stores.?
onlooker wrote:Talk about a dastardly reinforcing loop. Methane accumulation and Oxygen Depletion
It was thought that the significant sources of methane emissions were known, including natural wetlands, rice agriculture lands, ruminant animals, and energy production. Recently, however, there have been studies indicating that there is an unrecognized source of methane that has been unaccounted for. This concept was initiated by Frankenberg and his colleagues when they determined higher than expected methane concentrations above tropical regions during the dry season. In their findings, they used a space-borne global methane detector, SCIAMACHY (scanning imaging absorption spectrometer for atmospheric chartography) for their CH4 readings. They noted a strong relationship between areas of unusually higher methane concentrations and the presence of evergreen forests (Frankenberg, 2005). It was previously thought that methanogenesis was a strictly anaerobic, bacterial process. In January 2006, Frank Keppler and his colleagues at the Max-Planck Institute for Nuclear Physics in Heidelberg, Germany published evidence of aerobic methanogenesis by certain plants, including leaves of ash (Fraxinus excelsior), leaves of beech (Fagus sylvatica), sweet vernal grass (Anthoxanthum odoratum), maize (Zea mays), and wheat (Triticum aestivum) (Keppler, 2006). It is not yet known if all plants are capable of aerobic methanogenesis.
Factors such as sunlight and increased temperature were shown to affect the amount of methane released from the plants in Keppler’s experiments.
Estimated emissions for terrestrial plants may constitute 10-30% of the annual total of methane released in the atmosphere (Lowe, 2006).
While I am in favor of rebuilding our forests, it may now be evident that reforestation would only enhance the greenhouse effect. Therefore, the only practical solution seems to be to reduce anthropogenic greenhouse gas emissions.
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