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Greenhouse gas emissions reduction with economic growth
Overall emissions in the province are declining. As of 2023, Alberta’s total emissions have declined by 25.1 million tonnes – an 8.7% reduction since 2015.
Figure 1. Alberta’s total greenhouse gas (GHG) emissions
Chart data table
| Year | Alberta total emissions (Mt CO₂ eq.) |
|---|---|
| 2015 | 288.5 |
| 2016 | 274.5 |
| 2017 | 284.4 |
| 2018 | 282.9 |
| 2019 | 284.6 |
| 2020 | 266.0 |
| 2021 | 268.5 |
| 2022 | 265.5 |
| 2023 | 263.4 |
Alberta’s total greenhouse gas emissions from 2005 to 2023 expressed in million tonnes (Mt) of carbon dioxide equivalent.
Accessible chart description
Line chart showing Alberta’s historic emissions from 2015 to 2023. Alberta’s emissions have generally declined from 2015 onward.
Figure 2. Alberta emissions by sector
Chart data table
| Category | GHG (Mt of CO₂) |
|---|---|
| Oil Sands (Mining, In Situ, Upgrading), 32.86% | 86.5 |
| Natural Gas Production and Processing, 15.31% | 40.3 |
| Conventional Oil Production, 6.48% | 17.1 |
| Oil and Gas Transmission and Refining, 3.87% | 10.2 |
| Electricity, 7.28% | 19.2 |
| Transport, 9.06% | 23.9 |
| Heavy Industry, 6.83% | 18.0 |
| Buildings, 7.66% | 20.2 |
| Agriculture, 7.48% | 19.7 |
| Waste, 1.78% | 4.7 |
| Coal Production, 0.20% | 0.5 |
| Light Manufacturing, Construction and Forest Resources, 1.19% | 3.1 |
Breakdown of Alberta’s 2023 emissions by sector.
Accessible chart description
Pie chart showing Alberta’s 2023 emissions by sector. The three largest emitting sectors are oil sands, natural gas, and transport.
- Electricity sector emissions decreased 22 Mt from 2015 to 2023 – a 53.6% decline (2005 to 2023 is a 60% decline).
- Natural gas production and processing emissions decreased 12.5 Mt from 2015 to 2023 – a 23.6% decline.
- Conventional oil emissions decreased 4.0 Mt from 2015 to 2023 – an 18.8% decline.
- Transportation emissions decreased 3.4 Mt from 2015 to 2023 – a 12.4% decline.
- Heavy industry emissions decreased 1.6 Mt from 2015 to 2023 – an 8.0% decline.
Alberta had the greatest absolute reduction in emissions between 2022 to 2023 of any Canadian province or territory, reducing emissions by 2.1 million tonnes. According to Canada’s 2025 National Inventory Report, Alberta’s total emissions were 263.4 million tonnes in 2023, representing a 0.8% reduction from 2022.
Notably, emissions declined while the economy grew.
- Alberta has lowered emissions and reduced projected growth in emissions significantly, decoupling our emissions growth from economic growth.
- Alberta decreased its emissions intensity from 1.01 tonnes of carbon dioxide equivalent per $1,000 of GDP (2015 dollars) in 2005 to 0.75 in 2023 – a 26% decline.
- Alberta’s GDP increased 41% between 2005 and 2023 while emissions grew by just 4.8%.
Figure 3. Alberta decoupled emissions from GDP growth
Chart data table
| Year | Historic Intensity | Projected Intensity |
|---|---|---|
| 2015 | 0.89 | |
| 2020 | 0.86 | |
| 2023 | 0.75 | |
| 2025 | 0.71 | |
| 2030 | 0.60 | |
| 2035 | 0.48 |
Source: National Inventory Report 1990-2023: Greenhouse Gas Sources and Sinks in Canada (Table 2-2), Statistics Canada Table 36-10-0222-01, Statistics Canada Table 36-10-0223-01, and EPA internal modelling.
Accessible chart description
Alberta's emission intensity, measured in tonnes of carbon dioxide equivalent per $1000 GDP (2015 dollars), has been decreasing from 0.89 in 2015 to 0.75 in 2023. Mainly driven by an increase in GDP, complemented by a slight decrease in emissions, the intensity is projected to decrease moving forward, down to 0.60 in 2030 and 0.48 in 2035.
Methane reductions from conventional oil and gas
In 2015, Alberta was the first regional government in North America to commit to reducing methane emissions from the oil and gas sector. The province committed to reducing these emissions by 45% from 2014 levels by 2025 and reached that target 3 years early.
Electricity emission reductions
Electricity emissions have declined by 60% since 2005. Alberta will have avoided 235 Mt CO2e between 2015 and 2030 by moving to a lower-emitting electricity mix, including getting off coal early.
Figure 4. Alberta electricity emissions
Chart data table
| Year | Alberta's electricity emissions (CO₂e) |
|---|---|
| 2015 | 41.3 |
| 2016 | 42.4 |
| 2017 | 42.5 |
| 2018 | 31.4 |
| 2019 | 31.0 |
| 2020 | 27.0 |
| 2021 | 22.6 |
| 2022 | 19.4 |
| 2023 | 19.2 |
Source: Environment and Climate Change Canada, 2025 National Inventory Report 1990-2023: Greenhouse Gas Sources and Sinks in Canada
Accessible chart description
This graph shows that Alberta’s electricity emissions have declined by 45% since 2015.
In 2015, Alberta announced the province would eliminate emissions from coal power generation by 2030. Alberta achieved this target more than 6 years ahead of schedule, with the last coal‑fired power plant in Alberta transitioning to natural gas fuel in June 2024.
Figure 5. Alberta coal phase-out
Chart data table
| Year | Coal emissions, Mt | Estimated coal emissions, Mt | Cummulative avoided emissions, Mt |
|---|---|---|---|
| 2015 | 39.2 | 0 | 0 |
| 2016 | 39.0 | 0 | 0.6 |
| 2017 | 38.6 | 0 | 1.5 |
| 2018 | 26.0 | 0 | 9.6 |
| 2019 | 24.8 | 0 | 18.0 |
| 2020 | 20.5 | 0 | 28.9 |
| 2021 | 14.5 | 0 | 43.8 |
| 2022 | 9.0 | 0 | 60.7 |
| 2023 | 8.1 | 0 | 81.7 |
| 2024 | 0 | 3 | 102.9 |
| 2025 | 0 | 0 | 124.3 |
| 2026 | 0 | 0 | 146.0 |
| 2027 | 0 | 0 | 167.7 |
| 2028 | 0 | 0 | 189.8 |
| 2029 | 0 | 0 | 211.9 |
| 2030 | 0 | 0 | 234.1 |
Accessible chart description
The graph shows declining coal emissions and rising cumulative avoided emissions. Coal emissions are relatively flat from 2015 through 2017 at an average of 38.9 Mt, then there is a step change down to an average of 25.4 Mt for 2018 and 2019 and then a linear decline to 9 Mt by 2022, then somewhat flat to 2023 which is the last year for actual data. Estimated coal emissions for 2024 is 3 MT; coal fired generation ended in Alberta in June 2024. Cumulative emissions begin accruing in 2016 and are 1.5 Mt by 2017, growing faster every year to 60 Mt by 2022. In 2025 a linear growth of avoided emissions is forecast, arriving just under 235 Mt by 2030.
In 2016, Alberta set a target to generate 30% of its total electricity from renewable sources by 2030, and an interim target of 20% in 2025. Alberta’s renewable wind and solar energy growth has the province on track to meet or exceed this target.
- In 2022, 1.8 gigawatts of new wind and solar capacity installed in Canada. Nearly 1.4 gigawatts (or 80%) was in Alberta.
- In 2023, renewable generation provided approximately 18% of Alberta’s total electricity generation.
- In 2023, more than $1.6 billion worth of renewable energy projects were completed. Alberta’s renewable energy capacity increased to 6,614 megawatts, up from 3,028 megawatts in 2019. Renewable-energy capacity is expected to continue growing.
Figure 6. Alberta renewable capacity
Chart data table
| Year | Wind (MW) | Solar (MW) |
|---|---|---|
| 2015 | 1436 | 0 |
| 2016 | 1449 | 0 |
| 2017 | 1445 | 15 |
| 2018 | 1445 | 15 |
| 2019 | 1535 | 15 |
| 2020 | 1783 | 71 |
| 2021 | 1959 | 305 |
| 2022 | 2547 | 944 |
| 2023 | 3819 | 1275 |
| 2024 | 4865 | 1681 |
Source: AESO Market Statistics data file dashboard, downloaded May 22, 2025.
Accessible chart description
This graph shows the stacked solar and wind capacity in Alberta from 2015 to 2024. The combined solar and wind capacity grows slowly from 1,436 megawatts (MW) in 2015 to 1,550 MW in 2019, then there is exponential capacity growth, reaching 6,546 MW by 2024. Most of the capacity is wind. There is no solar in 2015 and 2016, then 15 MW from 2017 through 2019, then exponential growth, reaching 1,681 MW of solar by 2024.
The emissions intensity of Alberta’s electricity grid has decreased from 800 grams of carbon dioxide equivalent per kilowatt hour of electricity generated in 2005 to 470 grams of carbon dioxide equivalent per kilowatt hour in 2023. This is equivalent to a 41% reduction in 2022 from 2005 levels. These estimates are preliminary and may be subject to revision by Environment and Climate Change Canada.
Figure 7. Greenhouse gas intensity of Alberta's electricity grid
Chart data table
| Year | Generation Intensity (g CO₂ eq / kWh) |
|---|---|
| 2019 | 630 |
| 2020 | 630 |
| 2021 | 580 |
| 2022 | 510 |
| 2023 | 470 |
Source: Environment and Climate Change Canada, National Inventory Report 1990-2023: Greenhouse Gas Sources and Sinks in Canada [Preliminary]
Accessible chart description
The emissions intensity of Alberta’s electricity grid has decreased from 800 grams of carbon dioxide equivalent per kilowatt hour of electricity generated in 2005 to 470 grams of carbon dioxide equivalent per kilowatt hour in 2023. This is equivalent to a 41% reduction in 2022 from 2005 levels. Note that these estimates are preliminary and may be subject to revision by Environment and Climate Change Canada.
Transportation emission reductions
Figure 8. Alberta transportation emissions
Chart data table
| Year | Alberta's transport emissions (CO₂e) |
|---|---|
| 2015 | 27.2 |
| 2016 | 26.0 |
| 2017 | 26.6 |
| 2018 | 27.9 |
| 2019 | 28.0 |
| 2020 | 22.6 |
| 2021 | 23.0 |
| 2022 | 23.7 |
| 2023 | 23.9 |
Source: Environment and Climate Change Canada, National Inventory Report 1990-2023: Greenhouse Gas Sources and Sinks in Canada Annex 12- Table A12-10
Note: This data is sourced from Annex 12, Table A12-10 of Environment and Climate Change Canada’s National Inventory Report (NIR) 1990–2023. While the figures are based on publicly available data, the table reflects emissions by Economic Sector. The 2023 NIR includes methodological updates such as revised emission factors, updated fuel consumption estimates, and adjustments to sectoral data. These updates have led to recalculations of historical emissions, so figures may differ from earlier published tables or charts. Caution is advised when comparing with older datasets.
Accessible chart description
This chart presents annual greenhouse gas emissions from Alberta’s transportation sector between 2015 and 2023, measured in million tonnes of carbon dioxide equivalent (Mt CO₂e). The data reflect the IPCC 1.A.3 transport category, which includes road, aviation, rail, marine, and off-road sources. Emissions have gradually declined since 2015, reaching 23.9 Mt CO₂e in 2023.
Oil sands improvements
The emissions intensity of Alberta oil sands bitumen production has declined by 26% per barrel from 2012 to 2023. At the same time, production increased by 96%.
Figure 9. Alberta oil sands emissions intensity
Chart data table
| Year | Integrated Mining | In Situ | Standalone Mining | Total |
|---|---|---|---|---|
| 2012 | 0.587 | 0.489 | 0.542 | |
| 2013 | 0.571 | 0.470 | 0.495 | 0.522 |
| 2014 | 0.544 | 0.441 | 0.271 | 0.482 |
| 2015 | 0.506 | 0.439 | 0.234 | 0.452 |
| 2016 | 0.471 | 0.426 | 0.237 | 0.429 |
| 2017 | 0.473 | 0.425 | 0.268 | 0.432 |
| 2018 | 0.464 | 0.438 | 0.218 | 0.420 |
| 2019 | 0.453 | 0.446 | 0.215 | 0.418 |
| 2020 | 0.461 | 0.435 | 0.211 | 0.417 |
| 2021 | 0.449 | 0.431 | 0.204 | 0.409 |
| 2022 | 0.456 | 0.417 | 0.220 | 0.404 |
| 2023 | 0.437 | 0.426 | 0.206 | 0.399 |
Alberta oil sands greenhouse gas emissions intensity.
Source: Alberta Oil Sands Greenhouse Gas Emission Intensity Analysis
Accessible chart description
Line chart of the emissions intensities in the integrated mining, standalone mining, and in situ sectors. The chart shows the decreasing trend in intensities in the oil sands sector since 2012.
- In-situ emissions intensity declined by 13.0% (from 0.489 to 0.426 t CO2e per cubic metre) and integrated mining emissions intensity declined by 25.5% (from 0.587 to 0.437 t CO2e per cubic metre) from 2012 to 2023.
- Standalone mining operations, which were not present in 2012, are responsible for a significant portion of this decline in emissions intensity. Stand-alone mining had an emissions intensity of 0.206 t CO2e per cubic metre in 2023, which is roughly 49% of the emissions intensity of in-situ mining and 47% of the emissions intensity of integrated mining operations.
- Forecasts expect that intensity will likely fall 20 to 28% in the oil and gas sector between 2020 and 2035 – IHS Markit/S&P Global Report on the trajectory of oil sands GHG emissions: 2009-35
Industrial carbon pricing – TIER impacts
In 2007, Alberta introduced the first industrial carbon pricing and emissions trading system in North America. Since then, this has reduced emissions, supported industry with a flexible approach and helped grow Alberta’s economy.
In 2022, Alberta priced 59.3% of provincial emissions, reflecting 160.1 Mt of regulated emissions under the Technology Innovation and Emissions Reduction (TIER) Regulation, compared to 269.9 Mt of total reported emissions. The TIER price signal is extended further due to emissions trading.
From 2007 to 2023, Alberta’s industrial carbon pricing framework resulted in 254.5 million tonnes of compliance action beyond on-site reductions.
As of September 12, 2024, the number of active emissions performance credits was 17,148,257. Emissions performance credits are issued to facilities that surpass reduction requirements. As of September 12, 2024, the number of retired emissions performance credits was 32,781,915.
As of September 12, 2024, the number of active offsets was 23,288,121 and the number of retired offsets was 67,819,383, mainly from activities such as agricultural management, renewable energy generation, carbon capture, utilization and storage, methane reductions from pneumatic devices, and other eligible activities.
As of September 12, 2024, there are 411 projects listed on Alberta Emissions Offset Registry.
As of April 30, 2025, the most active credits by protocol are:
- Greenhouse Gas Emission Reductions from Pneumatic Devices (methane reductions from oil and gas), with 6997097 credits.
- Wind-powered Electricity Generation, with 5402180 credits.
- Enhanced Oil Recovery (utilization and storage of captured CO2 for oil recovery), with 5026048 credits.
- CO2 Capture and Permanent Storage in Deep Saline Aquifers, with 4309749 credits.
- Solar Electricity Generation, with 1269060 credits.
- Energy Generation from the Combustion of Biomass Waste, with 798279 credits.
- Vent gas reduction with 510909 credits.
- Conservation Cropping, with 482882 credits.
- Landfill Gas Capture and Combustion, with 438795 credits.
Investments in technology and energy efficiency measures to reduce emissions varies by site. Alberta has seen adoption of:
- co-generation of electricity and steam
- off coal and natural gas generation uptake
- renewable energy
- methane mitigation, all at current and emergent price points
The province anticipates continued growth of carbon capture, utilization and storage, solvents for extraction, and bioenergy with carbon capture and storage.
Additional resources
Carbon capture, utilization and storage
Alberta has a proven track record of supporting carbon capture, utilization and storage (CCUS), with approximately 15 million tonnes of CO2 safely sequestered since 2015.
Figure 10. Cumulative Net Total of CO2 Sequestered in Alberta
Chart data table
| Year | Quest and ACTL (Mt CO₂) | Total (Mt CO₂) |
|---|---|---|
| 2004 | 0.0 | 0.0 |
| 2005 | 0.0 | 0.2 |
| 2006 | 0.0 | 0.5 |
| 2007 | 0.0 | 0.7 |
| 2008 | 0.0 | 1.0 |
| 2009 | 0.0 | 1.3 |
| 2010 | 0.0 | 1.5 |
| 2011 | 0.0 | 1.7 |
| 2012 | 0.0 | 1.8 |
| 2013 | 0.0 | 2.0 |
| 2014 | 0.0 | 2.2 |
| 2015 | 0.3 | 2.6 |
| 2016 | 1.2 | 3.5 |
| 2017 | 2.1 | 4.4 |
| 2018 | 2.8 | 5.2 |
| 2019 | 3.7 | 6.2 |
| 2020 | 5.2 | 7.9 |
| 2021 | 7.1 | 9.9 |
| 2022 | 8.8 | 11.6 |
| 2023 | 10.9 | 13.7 |
| 2024 | 12.2 | 15.0 |
Source: Alberta Emission Offset Registry
Alberta’s cumulative net total of CO2 sequestered between 2004 to 2024 from all enhanced oil recovery and CCUS projects and the net sequestration from Alberta’s two commercial scale CCUS projects (Quest and ACTL) as of May 2025 from the Alberta Emission Offset Registry. The net total of CO2 sequestered reflects the amount of serialized emission offset credits and does not include volumes that have not yet been reported and/or completed required third-party verification.
Accessible chart description
Line graph showing Alberta’s cumulative net total of CO2 sequestered between 2004 to 2024 and the net sequestration from Alberta’s two commercial scale CCUS projects (Quest and ACTL).
From the Alberta Emission Offset Registry as of May 2025, Alberta projects have sequestered and permanently stored more than 15 million tonnes of carbon dioxide emissions through carbon capture and storage and enhanced oil recovery projects.
Alberta has invested more than $1.2 billion in the Alberta Carbon Trunk Line (ACTL) and Quest projects. Together, these projects have captured and stored more than 12.2 million tonnes of carbon dioxide. This capture estimate is calculated from the Alberta Emission Offset Registry.
- In total, Alberta has approximately $1.9 billion invested or committed to CCUS projects and programs since 2009 and will continue this leadership.
- Alberta is home to the Alberta Carbon Conversion Technology Centre, a piloting test centre to de-risk CCUS technologies.
- In 2023, Alberta provided TIER funds to the International CCS Knowledge Centre to form a new knowledge exchange platform to provide timely and efficient open access curation of lessons learned on CCS projects, proactively share best practices from developers from project inception through operation, and support better understanding of CCS.
- In 2024, the province introduced the Alberta Carbon Capture Incentive Program to provide an anticipated $3.2 and $5.3 billion in support over the next decade to help major industries incorporate CCUS into their operations by providing grant funding for new eligible capital project costs.
This total is updated after emission reductions are quantified, third party verified and added to the registry. Project proponents may report different numbers according to private calculations, but the province relies on totals that are accurately reported to the official registry.
Additional resources
- Alberta Emission Offset Registry
- Alberta Carbon Conversion Centre
- International CCS Knowledge Centre
- Emissions Reduction Alberta
- Alberta Carbon Capture Incentive Program