Regions - 2021 GTHA Carbon Inventory

Carbon emissions increased in all six municipalities in 2021 as pandemic-related restrictions were lifted.

Transportation and buildings continue to be the two highest-emitting sectors for all six municipalities, with the notable exception of industry in the City of Hamilton (which is home to 55% of total industrial emissions in the GTHA). On a per capita basis, the City of Toronto continues to have the lowest emissions in the region, largely due to the higher use of alternative modes of transportation enabled by its density.

Emission Profiles by Region

Includes the cities of Oshawa and Pickering, the towns of Whitby and Ajax, the Municipality of Clarington, and the Townships of Scugog, Uxbridge, and Brock.

Includes the City of Burlington and the towns of Oakville, Milton, and Halton Hills.

The City of Hamilton is the fifth largest city in Ontario and the tenth largest in Canada.

Includes the cities of Brampton and Mississauga and the Town of Caledon

With a population of almost 2.8 million, the City of Toronto is Canada’s largest city.

Includes the cities of Markham, Richmond Hill, and Vaughan, and the towns of Aurora, East Gwillimbury, Georgina, Newmarket, and Whitchurch-Stouffville, and the Township of King.

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Methodology (PDF)

Download data (Excel)