Taking account of the warming effect of different greenhouse gases - not their carbon emissions - would change the way methane was treated in emissions reductions targets.
Phil Ryan looks back at the 12 months since his viral video about the dairy crisis and drought aired and there's a mix of good and bad news.
Global dairy prices rose on Tuesday night, despite the escalating US-China trade war and slowing economic growth.
Milk exports to Asia, yoghurts flavoured with indigenous fruits and booming local sales are helping a small South Australian dairy company thrive in a tough market.
Australian milk production continues to fall, despite higher milk prices in a number of regions this season.
Fonterra has delayed the announcement of its 2018-19 results as it grapples with sorting the $NZ820 million-$NZ860 million asset write down it announced last month.