[Terrapreta] Carbon Isotopic Composition of Methane

[Shengar at aol.com]

Constraining past methane emissions
Although researchers know that the concentration of methane  fluctuated 
widely in the past, they are still unsure about the processes that  drove those 
changes. Now, Hubertus Fischer of the Alfred Wegener Institute for  Polar and 
Marine Research in Bremerhaven, Germany, and colleagues have measured  carbon 
isotope ratios in methane from the whole of the last glacial-interglacial  
transition (between 20,000 and 10,000 years before present) by analysing  ice-cores. 
The results place constraints on the strength of some of the most  important 
methane sources, which could help improve understanding of the  atmosphere's 
oxidative capacity. 
_http://environmentalresearchweb.org/cws/article/research/33994_ 
(http://environmentalresearchweb.org/cws/article/research/33994)  
Hi All 
Dr.Ruddiman at UVA  also uses carbon isotopic  composition of Methane 
measurements during the last 10,000 years of the  agriculture revolution to show the 
methane emission spike produced 6,000 years  ago with the development of rice 
patty farming. His work connects the dots of  the consequences that 
agricultural has had in mining carbon from the soil  and anthropogenic global warming.

I like the logical thrust Dr.  Ruddiman's work provides for putting carbon 
back to the soil. 
It makes implementing Terra Preta soil technology like an  act of penitence, 
a returning of the misplaced carbon.  
Energy, the carbon cycle and greenhouse gas management
_http://www.computare.org/Support%20documents/Fora%20Input/CCC2006/Energy%20Pa
per%2006_05.htm_ 
(http://www.computare.org/Support%20documents/Fora%20Input/CCC2006/Energy%20Paper%2006_05.htm)  


Erich J. Knight
1047 Dave Berry Rd.
McGaheysville, VA.  22840
540-289-9750
shengar at aol.com



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