Agriculture is responsible for producing 48 per cent of New Zealand’s carbon emissions – according to the Environment Ministry.
Landcare Research estimates almost two thirds of that is methane produced by belching and farting cattle and sheep.
The Crown Research Institute estimates those methane emissions have increased 10 per cent since 1990 as more farms have converted to dairy.
It is the biggest blot on New Zealand’s checkered climate change record.
On a per-capita basis the New Zealand economy has the ignominy of the highest methane emissions in the world at 600 kilograms per person – six times the global average.