Agriculture Minister David Carter says there has been strong support for the Global Alliance New Zealand is advancing for research on reducing agricultural greenhouse gas emissions.
The aim is to get countries working together on ways of cutting agricultural emissions without harming the world food supply.
Mr Carter is leading a New Zealand delegation to the World Summit on Food Security and the Food and Agriculture Organisation Conference, which started in Rome on Monday.
He says the challenges posed by climate change to food security and agriculture will be top of New Zealand's agenda and the summit will be a good opportunity to add to the support that's already built up for the Global Alliance.
Mr Carter says at this stage, about 20 nations have indicated their support and he hopes to gain more support during bilateral meetings with ministers in Rome.
Mr Carter will chair a meeting on climate change at the Food Summit. He will also host an event for supporters of the Global Alliance concept, including the United States, India, Brazil, France and China.