# How did greenhouse gas emissions from households (physical flow account) change in Nova Scotia? > Greenhouse gas emissions from households (physical flow account) decreased in Nova Scotia. Greenhouse gas emissions from households (physical flow account) fell from 4,535 Kilotonnes to 3,873 Kilotonnes between 2009 and 2023—a decrease of 662 Kilotonnes, or 14.6%. It reached an observed low of 3,776 Kilotonnes in 2021 before ending at 3,873 Kilotonnes in 2023. ## Answer scope - Geography: Nova Scotia (NS) - Period: 2009 to 2023 - Frequency: Annual - Source updated: 2025-12-11 - Accounting basis: Statistics Canada physical-flow account - Emissions coverage: Households - Emissions unit: Kilotonnes of CO₂ equivalent - Gases covered: Carbon dioxide, methane and nitrous oxide ## Key figures - Start · 2009: 4,535 Kilotonnes - Latest · 2023: 3,873 Kilotonnes - Overall change: -662 Kilotonnes (14.6% decrease) ## Exact observations | Period | Series | Source display value | Value as charted | Chart unit | | --- | --- | ---: | ---: | --- | | 2009 | Greenhouse gas emissions from households (physical flow account) | 4,535 Kilotonnes | 4535 | Kilotonnes | | 2010 | Greenhouse gas emissions from households (physical flow account) | 4,551 Kilotonnes | 4551 | Kilotonnes | | 2011 | Greenhouse gas emissions from households (physical flow account) | 5,140 Kilotonnes | 5140 | Kilotonnes | | 2012 | Greenhouse gas emissions from households (physical flow account) | 4,905 Kilotonnes | 4905 | Kilotonnes | | 2013 | Greenhouse gas emissions from households (physical flow account) | 4,533 Kilotonnes | 4533 | Kilotonnes | | 2014 | Greenhouse gas emissions from households (physical flow account) | 4,204 Kilotonnes | 4204 | Kilotonnes | | 2015 | Greenhouse gas emissions from households (physical flow account) | 4,707 Kilotonnes | 4707 | Kilotonnes | | 2016 | Greenhouse gas emissions from households (physical flow account) | 4,419 Kilotonnes | 4419 | Kilotonnes | | 2017 | Greenhouse gas emissions from households (physical flow account) | 4,567 Kilotonnes | 4567 | Kilotonnes | | 2018 | Greenhouse gas emissions from households (physical flow account) | 4,716 Kilotonnes | 4716 | Kilotonnes | | 2019 | Greenhouse gas emissions from households (physical flow account) | 4,600 Kilotonnes | 4600 | Kilotonnes | | 2020 | Greenhouse gas emissions from households (physical flow account) | 3,851 Kilotonnes | 3851 | Kilotonnes | | 2021 | Greenhouse gas emissions from households (physical flow account) | 3,776 Kilotonnes | 3776 | Kilotonnes | | 2022 | Greenhouse gas emissions from households (physical flow account) | 3,913 Kilotonnes | 3913 | Kilotonnes | | 2023 | Greenhouse gas emissions from households (physical flow account) | 3,873 Kilotonnes | 3873 | Kilotonnes | ## How to read this measure This is the physical-flow account, not the ECCC National Inventory Report or a consumption footprint. Methane and nitrous oxide use global warming potentials of 28 and 265. 2009–2022 data were revised in December 2025. Totals may differ from component sums due to rounding. ## How this answer was calculated The headline compares the first and last observations shown. Absolute change is the last source value minus the first; relative change is (last ÷ first − 1) × 100. Intermediate observations remain visible in the chart and exact values. This is descriptive and does not identify causes. ## Source and provenance - Official source: [Statistics Canada table 38-10-0097-01]() - Table title: Physical flow account for greenhouse gas emissions - Dataset identifier: 38100097 - Canonical human-readable answer: - Province and territory comparison: - Interpretation policy: this answer describes the selected observations; it does not infer causation. - Source acknowledgement: Adapted from Statistics Canada, Physical flow account for greenhouse gas emissions, 2025-12-11. This does not constitute an endorsement by Statistics Canada of this product. ## Evidence version - Snapshot generated: 2026-09-05 - Snapshot SHA-256: `c9882d908d7b8a0374fe7c7c93106506b8d47520df5814c21d767e74984d45cb` - Evidence changelog: - This answer URL represents the latest deployed evidence. Record the digest when reproducibility matters. ## Suggested citation Canada in Data. “How did greenhouse gas emissions from households (physical flow account) change in Nova Scotia?” Nova Scotia. Source updated 2025-12-11. Canada in Data is an independent public-interest project and is not Statistics Canada. Verify consequential uses against the linked official table.