Tangani Nabri says farmers in Papua New Guinea used to know the best time to plant their crops. But not anymore.
Mr Nabri, a trainer with the PNG in Agriculture Development Foundation (ADF), works with farmers in the hills near Lae in PNG to help build resilience and modernise their farming practices.
"Long ago, during the time of our ancestors, the rainy season started from September and comes up to May," he told the ABC's Pacific program.
