Methane and Climate Change by Dave Reay

By Dave Reay

Methane is a robust greenhouse gasoline and is predicted to be chargeable for nearly one-fifth of artificial worldwide warming. according to kilogram, it is twenty-five occasions extra strong than carbon dioxide over a 100-year time horizon – and worldwide warming is probably going to reinforce methane free up from a couple of assets. present normal and man-made assets comprise many the place methane-producing micro-organisms can thrive in anaerobic stipulations, quite ruminant cattle, rice cultivation, landfill, wastewater, wetlands and marine sediments.

This well timed and authoritative publication offers the single accomplished and balanced evaluation of our present wisdom of resources of methane and the way those can be managed to restrict destiny weather swap. It describes how methane is derived from the anaerobic metabolism of micro-organisms, no matter if in wetlands or rice fields, manure, landfill or wastewater, or the digestive platforms of farm animals and different ruminant animals. It highlights how assets of methane could themselves be plagued by weather switch. it really is proven how quite a few element assets of methane have the capability to be extra simply addressed than assets of carbon dioxide and accordingly give a contribution considerably to weather swap mitigation within the twenty first century.

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Miller, J. , Dlugokencky, E. , Hauglustaine, D. , Langenfelds, R. , Ramonet, P. F. , Steele, L. , Tyler, S. C. and White, J. W. C. (2006) ‘Contribution of anthropogenic and natural sources methane emissions variability’, Nature, vol 443, pp439–443 Cao, M. , Marshall, S. and Gregson, K. (1996) ‘Global carbon exchange and methane emissions from natural wetlands: Application of a process-based model’, Journal of Geophysical Research – Atmospheres, vol 101, pp14399–14414 Chappellaz, J. , Fung, I.

Innocenzi, INGV; d) G. 3 Examples of everlasting fire seeps Note: a) Yanardag, Azerbaijan; b) Chimaera, Turkey; c) Monte Busca, Italy; d) Andreiasu, Romania Sources: a) L. Innocenzi, INGV; b) H. Hosgormez, University of Istanbul; c) G. Etiope, INGV; d) G. Etiope, INGV summer seasons, or throughout the year. Many vents can be easily ignited artificially. Some fires are called ‘everlasting’ or ‘eternal’, since the presence of a flame has been continuously reported in historical records. Several continuous seeps are related to ancient religious traditions (such as those related to Zoroastrism in Azerbaijan; see Etiope et al, 2004a) and are still active today in archaeological sites (for example Chimaera seep in Turkey; see Hosgormez et al, 2008).

And Melack, J. M. (1988) ‘Methane flux from the central Amazonian floodplain’, Journal of Geophysical Research, vol 93, pp1571–1582 Bartlett, K. , Sass, R. , Harriss, R. C. and Dise, N. B. , Pace, M. and Tranvik, L. , Miller, J. , Dlugokencky, E. , Hauglustaine, D. , Langenfelds, R. , Ramonet, P. F. , Steele, L. , Tyler, S. C. and White, J. W. C. (2006) ‘Contribution of anthropogenic and natural sources methane emissions variability’, Nature, vol 443, pp439–443 Cao, M. , Marshall, S. and Gregson, K.

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