GTHA emissions continue to rise
2022 saw the largest increase since 2015
Carbon Emissions in the Greater Toronto and Hamilton Area


Carbon emissions increased across all six regions in 2022. 

Increase of 8% to 54 millon tonnes from 2021 to 2022.

54 Mt total emissions, an 8% increase from 2021
9% annual decrease needed to hit 2030 targets across the GTHA
46% are from buildings, which remain top source of emissions.

The densely populated GTHA is the second-largest financial centre in North America and represents approximately half of Ontario's total emissions.

The Greater Toronto and Hamilton Area (GTHA) in Canada includes the City of Toronto, the City of Hamilton, and the regional municipalities of Halton, Peel, York, and Durham.

This 8,244 square kilometre urban region, home to 7.3 million people, is Canada's commercial, distribution, and financial core. Almost half of Ontario's emissions come from this region.

TAF acknowledges these boundaries were created by settlers and do not reflect the Indigenous peoples who have occupied these lands for thousands of years or their traditional territories or treaties.

Contiguous urban land8,244.42 km2
Total population7.4 million

Regional Data

Regional Emissions at a Glance

Carbon Emissions across the GTHA

Sector Data

Sector Emissions at a Glance