Greenhouse gas (GHG) emissions from paddy fields worldwide have doubled since the 1960s, a new study in NatureFood has found. In the most recent decade, 2011-2020, paddy fields around the world produced around 1.1 billion tonnes of carbon dioxide-equivalent (CO2-e) emissions every year — a 90.4% increase from the annual emissions between 1961 and 1980, the study reported.