The United Nations Framework Convention on Climate Change (UNFCCC) posted the National Inventory Reports of greenhouse gas emissions from most countries of the world in the second week of April 2017, including Canada’s National Inventory Report 1990–2015: Greenhouse Gas Sources and Sinks in Canada. The full 3-part report, available only at the UNFCC website, is an exhaustive inventory emissions of GHG’s, including carbon dioxide, methane, nitrous oxide, perfluorocarbons, hydrofluorocarbons, sulphur hexafluoride, and nitrogen trifluoride, reported for the country and for each province and territory. Statistics are given for five economic sectors, as defined and required by the Intergovernmental Panel on Climate Change (IPCC) : Energy, Industrial Processes and Product Use, Agriculture, Waste, and Land Use, and Land-Use Change and Forestry (LULUCF). An Executive Summary is posted at Environment and Climate Change Canada, and includes statistics using Canadian economic sector definitions.
A few highlights: In 2013; Canada represented approximately 1.6% of total global GHG emissions. Canada remains one of the highest per capita emitters, although that is decreasing since 2005 and was the lowest yet in 2015, at 20.1 tons. In 2015, Canada’s GHG emissions were 722 megatonnes of carbon dioxide equivalent – a net decrease of 2.2% from 2005 . The Energy Sector ( as defined by IPCC, consisting of Stationary Combustion Sources, Transport, and Fugitive Sources) emitted 81% of Canada’s total GHG emissions; Agriculture emitted 8%; Industrial Processes and Product Use emitted 7%; the Waste Sector emitted 3%.
Using Canadian economic sector definitions, our Oil and Gas sector showed a 20% increase in emissions from 2005 to 2015; Transportation increased by 6% in that time.
Nationally, we posted a 31% decrease in emissions associated with electricity production. The permanent closure of all coal generating stations in the province of Ontario by 2014 was the determinant factor.