New Zealand Pastural Farming Climate Research

Promoting livestock methane emissions as sustainable and not responsible for global warming and advocating fairness for agricultural producers under any carbon emission laws or regulations.

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Methane is not the problem

June 11, 2010 By Robin Grieve

Atmopsheric concentrations of methane are stable, (some years it falls, some years it increases) despite a doubling in global consumption of meat and dairy products over the last 30 years.

This is why;

Estimated sources and sinks of methane in Tg CH4 (a Tg = 1 million tonnes) per year from the IPCC Working Group 1 report

Sources

Wetlands                            115

Rice paddies                      110

Livestock                             80

Natural gas venting        45

Biomass burning              40

Termites                              40

Landfills                               40

Coal mining                        35

Oceans                                 10

Freshwaters                       5

Other                                    5

Total                                      525 Tg

Sinks

Removal be soils                                                             30

Reaction with OH in the atmosphere                     500

Total Sink                                                                            530 Tg

Of the total 525 Tg CH4 produced per year the only fossil sources are coal and natural gas totalling 80 Tg per year. These are the only non- natural cycle emissions that have the potential to raise the atmospheric concentration of methane and maybe cause global warming.

But they don’t, natural sinks absorb even them, including removal of methane by farmers’ soils, for which no credit is given to the farmer who owns the soil.

Atmospheric levels of methane are not the problem, especially the sources of methane that are ECO EMISSIONS or BIOGENIC such as livestock methane.

Is there a scientist anywhere that can argue against this!

Filed Under: Uncategorized Tagged With: Add new tag, eco, emissions, IPCC, methane

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