.. the projection of total NZ anthropogenic methane, going forward to 2100, would be 10 millionths of a degree per year. The margin of error for atmospheric temperature measurement is between 0.2 and 0.5°C, an average of 0.35°C. At 10 millionths °C/year it would then take 35,000 years for warming from NZ methane to become measurable or 87,500 years for warming from NZ livestock to be measurable. In order to reduce this figure our bureaucrats and politicians are prepared to destroy our agricultural industry that provides some 40% of NZ’s overseas earnings.

We now understand that anaerobic (without oxygen) decomposition of organic matter produces a mixture of methane, phosphine and diphosphane. The latter ignite spontaneously on contact with air also igniting the methane giving rise to the ghostly lights often seen over swamps. Methane then is a natural gas produced wherever decomposition of organic matter occurs. Decomposition requires water and warmth ..

… It appears to assume that the methane emissions from dairy and meat count, but they do not because they come from carbon dioxide that was already in the atmosphere and was taken up by grass in photosynthesis. Any methane decays on a decade timescale back to carbon dioxide. It is circular. Methane is so short-lived it equilibrates and no extra warming results .. We do need to decrease emissions, but fossil fuels.