Ruminants produce large quantities of methane gas through belching and flatulence when they digest grass, which accounts for about 15-25% of overall gas emissions, according to different estimates.
A single cow produces on average 350 liters of methane and 1,500 liters of carbon dioxide per day.
"For Copa-Cogeca, an organization that unites farmers of the European Union, the information received from Estonian farmers came as a huge surprise, and they could not recall a similar precedent in any EU country," said the party's spokesman, Jaanus Marrandi.
No other EU country imposes a flatulence tax on farmers.
A year after joining the Kyoto protocol, authorities in New Zealand proposed introducing a flatulence tax saying that New Zealand cattle are responsible for 90% of the country's methane emissions and 43% of greenhouse gas emissions.