Federated Farmers president William Rolleston has stepped in as acting president of the World Farmers' Organisation.
President Evelyn Nguleka last week said she had decided to step down due to issues affecting the National Farmers' Union in her home country of Zambia.
As vice president, Dr Rolleston moves into the role, "so I've got two jobs now," he said.
He told The Country host Jamie Mackay the organisation, of which Federated Farmers is a member, advocated on behalf of farmers.
He gave the example of the Paris climate change talks, where the organisation lobbied to include the terms food security and food production in the agreement.