New Zealand’s agricultural emissions are high

Nearly half of New Zealand’s emissions are from livestock. A shocking 46.1% for the year 2012 as calculated by the Ministry for the Environment. (MfE). A large proportion of this comes from beef and to a less extent sheep. The MfE paper tells us tells us that in 2012 we had 6.4 m dairy cattle, 3.8m beef cattle, 3.1 m sheep and 1 m deer. So a total of 14.3m ruminant livestock.

So I read their paper calculating our emissions, or more accurately skimmed through it, reading the less technical parts of it as it is hundreds of pages long. I was looking for indications of what Global Warming Potential they were using for methane. It was only when I was reading a book by Richard Oppenlander that I saw the statement that methane is 72 times as powerful as carbon dioxide over a 20 year period and checked this out with Prof James Renwick of Victoria University. Yes he said that is the figure that scientists are taking now.

I finally discovered on a Stats NZ site that we do calculate our methane contribution with a GWP of 25 and once again questioned the climate science professor. He answered,

“Yes a GWP of 25 sounds right as they’ll be using GWP100. That’s still the standard under .the UNFCCC so is how we are required to report emissions (as I understand things), even though the science has clearly moved on to the two baskets approach. ”

But then I asked him if I was right to say the percentage contributed by agriculture would rise if methane GWP was 72, and he said no it would fall. So I was wrong, the headline above is misleading now and I will change it.


New Zealanders eat 94.6kg of meat per capita according to Beef and Lamb NZ

On this topic there is nothing better than referring to Beef and Lamb New Zealand website itself from which I quote:-

How much red meat are Kiwis currently eating? Based on working estimates, New Zealanders currently eat (carcass weight equivalent) about: 17.2kg beef, 5kg lamb and 0.7kg mutton per capita. In addition, 23.9kg pork and 47.8kg chicken per capita (2017-18 BLNZ Ltd Economic Service) resulting in a total red meat intake 46.8kg (beef + lamb/mutton + pork)

In the last 10 years to 2017-18, per capita figures have changed:

  • Beef down 38%
  • Lamb down 45%
  • Mutton down 72%
  • Overall reduction of beef/lamb/mutton = 42%
  • Pork up 15%
  • Poultry up 40%
  • Overall reduction all meats = 0%

I find this interesting that even though we reduce our red meat, we are so obsessed with getting our protein from animals that we increase pork and poultry (note they don’t mention fish).

I also find interesting the fact that they have classified pork as red meat, which I don’t think is the public perception. I may be wrong.

So we each eat 46.8kg from red meat and 47.8 kg from chicken or 94.6kg meat.

I am not sure this tallies with the world figures quoted for our country. And all this without dairy consumption to add to our animal protein.

Clearly someone is eating my share!