Yet they use up to 20% of Canadians’ household electricity and collectively contribute 4.4 Mt of CO₂e emissions in a single year. Entertainment and home office electronics are often hidden from source-tracked use estimates because it comes from many smaller sources. Big household appliances, like refrigerators and clothes washers, use almost as much. It takes only 14 months to reach one tonne of GHG emissions from powering just the water heating system of one house. One of the biggest single electricity users is water heating systems which account for approximately 50% of an average Canadian’s household electricity.
In Canada, households rely heavily on electricity.
Canadian residential space heating accounts for 39 Mt of CO₂e emissions in a year, mostly over the winter months. The high demand for heat means a single Canadian household will produce three tonnes of GHG emissions in a year from space heating alone. Because of cold Canadian winters, households use space heating systems that run on natural gas or heating oil for a good portion of the year. It accounts for 63% of all household energy use. One tonne of greenhouses gas emissions is equal to: Heating a home for 4 months *īy far the single biggest emissions source in Canadian households is for space heating. So, to make it easier to understand we can ask: what Canadian sources are equivalent to one tonne of GHGs? How does it translate to the real world, and how do these sources contribute to overall emissions? It doesn’t help either that we usually talk about these emissions in big units which are hard to wrap our heads around. Understanding GHG emissions can be challenging. The government of Canada has pledged to reduce national emissions by 30% from 2005 levels by 2030 – that is, to 524 megatons (Mt) of CO₂e emissions annually by 2030 (compared to 732 Mt of CO₂e emissions in 2014). Climate change is the result of an overabundance of greenhouse gas (GHG) emissions in the atmosphere.
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