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|The most recent
estimate of Canada's greenhouse gas emissions in 2010 is 809 million
tonnes - expressed as their carbon
dioxide equivalent. This is based on "business as usual" or
"do nothing to curtail them".
electricity, industry and buildings are major sources of carbon dioxide.
|Oil and gas
production contributes both carbon dioxide and methane.
contributes mostly methane and nitrous oxide.
landfills contribute methane equivalent to 27 million tonnes of carbon