Professor Mark Howden is Director of the Climate Change Institute at the Australian National University and the highest-ranked Australian on the IPCC, which recently produced a report saying land use is directly responsible for almost a quarter of emissions. He spoke to Eloise Gibson in Canberra about that report, about Aussie farmers' growing acceptance of climate change, and his take on New Zealand’s methane debate.

This interview was edited for length and clarity. Read the full article on the newsroom website.