A warning that Fonterra's new sustainability goals could push farmers away. 

The dairy giant is planning to cut 30% of emissions by 2030 via new technology, carbon removal through vegetation, and on farm practises. 

Lincoln University Adjunct Professor Jacqueline Rowarth says farmers will look to other companies if they can't cope.  

She says this could all come back to bite Fonterra if other countries don't do what we're doing. 

Rowarth adds it's hard for farmers to do better when our farming emissions are already low. 

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