International modelling is looking at the effects of mitigation and what it does to our agriculture goods.

A new study that explores whether global hunger could increase if we implement climate mitigation is in progress.

Anita Wreford is an associate professor at Lincoln University and says according to the policy, regulating irrigation will most likely increase costs.

"Food may become more expensive for consumers, but irrigation doesn't do anything to help with our emissions, as the water quality is separate."

LISTEN ABOVE AS ANITA WREFORD SPEAKS TO MIKE HOSKING