Toronto Pearson has achieved Level 4 Airport Carbon Accreditation under Airports Council International's (ACI) Airport Carbon Accreditation programme. This accreditation recognizes our commitment to reducing carbon emissions, aligning our carbon management strategy with global climate goals, and engaging stakeholders in climate action.
Our GHG targets
Toronto Pearson is working toward net-zero Scope 1 and 2 greenhouse gas (GHG) emissions by 2050. We’re reducing our carbon footprint by improving operational efficiency and investing in initiatives that reduce energy consumption and GHG emissions.
Toronto Pearson is one of only nine airports in North America and one of two in Canada to achieve Level 4 accreditation under Airports Council International’s (ACI) Airport Carbon Accreditation (ACA) programme. This level recognizes airports that align their carbon management strategies with global climate goals, prioritize absolute emissions reductions, and strengthen engagement with stakeholders.
We also participate in the Government of Canada’s Net-Zero Challenge, supporting the transition to a net-zero economy by 2050.
2025 GHG emissions
Our 2025 GHG emissions, reported by scope, were:
- Scope 1: 129,543 tonnes of CO₂e
- Scope 2: 12,923.29 tonnes of CO₂e
- Scope 3: 7,826,514 tonnes of CO₂e
Climate change initiatives
Energy reduction initiatives
To help reach these targets, we have:
- Upgraded to light-emitting diodes (LEDs) in all baggage areas, tunnels and airport employee areas of Terminal 1. Lighting controls have also been installed to adjust lighting to time of day
- Completed a heating, ventilation and air conditioning (HVAC) optimization project that puts air quality monitoring sensors closer to passengers and employees to keep them more comfortable and helps control the amount of heating and cooling needed.
Pearson LED energy conservation video
Airport infrastructure assessment
Adapting the airport for climate change first involves determining if any of the airport assets or infrastructure is vulnerable, and then taking appropriate action.
The airport infrastructure assessment found that:
- No assets were considered to be high risk.
- About 10% of the low risk assets increased to a medium risk score as a result of extreme heavy rainfalls, heavy rainfalls, freezing rain, ice storms, hurricanes and tropical storms.
- About 10% of the medium risk assets decreased to a low risk score because of decreases in cold waves and freeze-thaw cycles.