Dairy cattle farming emissions rose 3.18 percent in a year according to the latest data.
Many locals did not want to comment, citing non-disclosure agreements they had signed.
Frances Sweetman spoke to The AM Show to explain.
It doesn't get any feta than this.
A2 Milk shares are the second most valuable company on the NZX.
The dairy company's net profit for the year ended July was $75.2 million.
The campaigners met with Landcorp on Wednesday.
The Fonterra farm manager is encouraging people to "just give it a go".
A south island course with 180 spots had just 50 applicants.