Greenhouse Gas Emissions from Canadian Agriculture: Estimates and Measurements

Other models focus on simulating the productivity and impact of cropping systems on the environment, with the goal of estimating the level of emissions. [...] (2020) estimated CH4 emissions per cow and GHG emissions per litre of milk production in Canada and found that CH4 emissions per cow increased between 1981 and 2006 while the GHG emissions per litre of milk decreased (Fig. [...] The choice is primarily driven by the data requirements for the respective models (site-specific simulations are more suited to process models), as well as by the scope of the simulation and the capabilities of the model, the intended output. [...] SUMMARY AND CONCLUSIONS Of the 729 Mt of CO2 eq emitted by GHGs in Canada in 2018, 59 Mt were emitted that year by the Canadian agricultural sector in the form of CO2, N2O and CH4. [...] Handling and storing livestock manure emits indirect CH4 and N2O, and the amounts vary depending on the quantity of manure handled, its characteristics and the type of manure management system used.