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Table 2
Sources of greenhouse gas emissions by sector
Energy
Stationary Fuel Combustion
Electricity and Heat Generation	Emissions from fuel consumed by:
Electricity Generation	Utility and industry electricity generation
Heat Generation	Steam generation (for sale)
Fossil Fuel Industries	Emissions from fuel consumed by:
Petroleum Refining and Upgrading	Petroleum refining industries (including upstream facilities)
Fossil Fuel Production	Conventional and non-conventional oil and gas production industries (some refining is included)
Mining	Emissions from commercial fuel sold to: Metal and non-metal mines, stone quarries, and gravel pits Oil and gas extraction industries Mineral exploration and contract drilling operations
Manufacturing Industries	Emissions from fuel consumed by the following industries: Iron and steel (steel foundries, casting and rolling mills) Non-ferrous metals (aluminium, magnesium, and other production) Chemical (fertilizer manufacturing, organic and inorganic chemical manufacturing) Pulp and paper (primarily pulp, paper, and paper product manufacturers) Cement production Other manufacturing industries not listed (such as automobile manufacturing, textiles, food and beverage industries)
Construction	Emissions from fuels consumed by the construction industry - buildings, highways, etc.
Commercial and Institutional	Emissions from fuel consumed by: Service industries related to mining, communication, wholesale and retail trade, finance and insurance, real estate, education, etc. Federal, provincial, and municipal establishments National Defence and Canadian Coast Guard Train stations, airports, and warehouses
Residential	Emissions from fuel consumed for personal residences (homes, apartment hotels, condominiums, and farm houses)
Agriculture and Forestry	Emissions from fuel consumed by: Forestry and logging service industry Agricultural, hunting and trapping industry (excluding food processing, farm machinery manufacturing and repair)
Transportation	Emissions resulting from combustion and/or the fugitive releases due to moving passengers, freight, and commodities throughout Canada
Domestic Aviation	Emissions resulting from the consumption of fossil fuels by Canadian-registered airlines flying domestically
Road Transportation	Emissions resulting from the consumption of fossil fuels by vehicles licensed to operate on roads
Railways	Emissions resulting from the consumption of fossil fuels by Canadian railways
Domestic Marine	Emissions resulting from the consumption of fossil fuels by Canadian-registered marine vessels fuelled domestically
Others - Off-Road	Emissions resulting from the consumption of fossil fuels by combustion devices not licensed to operate on roads
Others - Pipelines	Emissions resulting from the transportation and distribution of crude oil, natural gas, and other products
Fugitives	Intentional and unintentional releases of greenhouse gases from the following activities:
Coal Mining	Underground and surface mining
Oil and Natural Gas	Conventional and unconventional oil and gas exploration, production, transportation, and distribution
Industrial Processes	Emissions resulting from the following process activities:
Mineral Production	Production of cement and lime; use of soda ash and limestone
Chemical Industry	Production of ammonia, nitric acid, and adipic acid
Metal Production	Production of aluminium, iron and steel; magnesium production and casting
Consumption of Halocarbons and SF₆	Use of HFCs and/or PFCs in air conditioning units, refrigeration units, fire extinguishers, aerosol cans, solvents, foam blowing, semi-conductor manufacturing and electronics industry; use of SF₆ in electrical equipment
Other and Undifferentiated Production	Non-energy use of fossil fuels
Solvent and Other Product Use	Emissions resulting from the use of N₂O as anaesthetic and propellant
Agriculture	Emissions resulting from:
Enteric Fermentation	Livestock
Manure Management	Livestock waste management
Agricultural Soils
Direct N₂O Emissions	Emissions resulting from synthetic fertilizer, manure nitrogen on pasture and cropland, biological nitrogen fixation, crop residue, and cultivation of organic soils
Indirect N₂O Emissions	Emissions from volatilization, leaching and runoff of animal manure nitrogen and synthetic fertilizer nitrogen
Waste	Emissions resulting from:
Solid Waste Disposal on Land	Municipal waste management sites (landfills) and wood waste landfills
Wastewater Handling	Domestic wastewater treatment
Waste Incineration	Municipal solid waste and municipal wastewater treatment sludge incineration
Source: Environment Canada, 2005.
Table source: Statistics Canada, 2006, Canadian Environmental Sustainability Indicators: Greenhouse Gas Emissions Indicator – Data Sources and Methods, Catalogue number 16-255-XWE2006000.

Table 2
Sources of greenhouse gas emissions by sector

Energy

Stationary Fuel Combustion

Electricity and Heat Generation

Emissions from fuel consumed by:

Electricity Generation

Utility and industry electricity generation

Heat Generation

Steam generation (for sale)

Fossil Fuel Industries

Emissions from fuel consumed by:

Petroleum Refining and Upgrading

Petroleum refining industries (including upstream facilities)

Fossil Fuel Production

Conventional and non-conventional oil and gas production industries (some refining is included)

Mining

Emissions from commercial fuel sold to:
Metal and non-metal mines, stone quarries, and gravel pits
Oil and gas extraction industries
Mineral exploration and contract drilling operations

Manufacturing Industries

Emissions from fuel consumed by the following industries:
Iron and steel (steel foundries, casting and rolling mills)
Non-ferrous metals (aluminium, magnesium, and other production)
Chemical (fertilizer manufacturing, organic and inorganic chemical manufacturing)
Pulp and paper (primarily pulp, paper, and paper product manufacturers)
Cement production
Other manufacturing industries not listed (such as automobile manufacturing, textiles, food and beverage industries)

Construction

Emissions from fuels consumed by the construction industry - buildings, highways, etc.

Commercial and Institutional

Emissions from fuel consumed by:
Service industries related to mining, communication, wholesale and retail trade, finance and insurance, real estate, education, etc.
Federal, provincial, and municipal establishments
National Defence and Canadian Coast Guard
Train stations, airports, and warehouses

Residential

Emissions from fuel consumed for personal residences (homes, apartment hotels, condominiums, and farm houses)

Agriculture and Forestry

Emissions from fuel consumed by:
Forestry and logging service industry
Agricultural, hunting and trapping industry (excluding food processing, farm machinery manufacturing and repair)

Transportation

Emissions resulting from combustion and/or the fugitive releases due to moving passengers, freight, and commodities throughout Canada

Domestic Aviation

Emissions resulting from the consumption of fossil fuels by Canadian-registered airlines flying domestically

Road Transportation

Emissions resulting from the consumption of fossil fuels by vehicles licensed to operate on roads

Railways

Emissions resulting from the consumption of fossil fuels by Canadian railways

Domestic Marine

Emissions resulting from the consumption of fossil fuels by Canadian-registered marine vessels fuelled domestically

Others - Off-Road

Emissions resulting from the consumption of fossil fuels by combustion devices not licensed to operate on roads

Others - Pipelines

Emissions resulting from the transportation and distribution of crude oil, natural gas, and other products

Fugitives

Intentional and unintentional releases of greenhouse gases from the following activities:

Coal Mining

Underground and surface mining

Oil and Natural Gas

Conventional and unconventional oil and gas exploration, production, transportation, and distribution

Industrial Processes

Emissions resulting from the following process activities:

Mineral Production

Production of cement and lime; use of soda ash and limestone

Chemical Industry

Production of ammonia, nitric acid, and adipic acid

Metal Production

Production of aluminium, iron and steel; magnesium production and casting

Consumption of Halocarbons and SF₆

Use of HFCs and/or PFCs in air conditioning units, refrigeration units, fire extinguishers, aerosol cans, solvents, foam blowing, semi-conductor manufacturing and electronics industry; use of SF₆ in electrical equipment

Other and Undifferentiated Production

Non-energy use of fossil fuels

Solvent and Other Product Use

Emissions resulting from the use of N₂O as anaesthetic and propellant

Agriculture

Emissions resulting from:

Enteric Fermentation

Livestock

Manure Management

Livestock waste management

Agricultural Soils

Direct N₂O Emissions

Emissions resulting from synthetic fertilizer, manure nitrogen on pasture and cropland, biological nitrogen fixation, crop residue, and cultivation of organic soils

Indirect N₂O Emissions

Emissions from volatilization, leaching and runoff of animal manure nitrogen and synthetic fertilizer nitrogen

Waste