Direct emissions
222,000
tCO2e
B
British American Tobacco p.l.c.
Mycelium Score
8.0 / 10
An industry-leading score
A
Transparency
Very High
Extensive disclosure across almost all key areas
Explore carbon emissions data for British American Tobacco p.l.c. Mycelium helps you review reported emissions, disclosure status, Scope 1, Scope 2 and Scope 3 data, climate targets and sustainability information in one company profile.
This profile brings together available carbon emissions data for British American Tobacco p.l.c., including reported figures, modelled estimates, disclosure documents and sustainability indicators, so you can review its emissions and compare its performance against similar companies. It is one entry in the Mycelium emissions database. Read how we source and check this data.
Emissions
Carbon emissions
Total yearly emissions across all scopes
5,493,761 tCO2e (Market Based) (Mycelium adjusted)
- Reported by British American Tobacco p.l.c.
- 5,079,000 tCO₂e
- Estimated by Mycelium
- 414,761 tCO₂e
British American Tobacco p.l.c. reported 92% of the adjusted total. Mycelium estimated the remaining 8% for the categories it did not disclose.
Scope 1
tCO2e
222,000
Scope 2 (Market Based)
tCO2e
67,000
Scope 3 total
tCO2e
5,204,761
Not yet checked against the source report
Scope 3 reported
The GHG Protocol splits Scope 3 into 15 categories. Ticked categories are the ones this disclosure reports; the rest are either not applicable or estimated by Mycelium.
-
1
Purchased goods & services
-
2
Capital goods
-
3
Fuel & energy related activities
-
4
Upstream transportation & distribution
-
5
Waste generated in operations
-
6
Business travel
-
7
Employee commuting
-
8
Upstream leased assets
-
9
Downstream transportation & distribution
-
10
Processing of sold products
-
11
Use of sold products
-
12
End-of-life treatment of sold products
-
13
Downstream leased assets
-
14
Franchises
-
15
Investments
The GHG Protocol splits Scope 3 into 15 categories. Ticked categories are the ones this disclosure reports; the rest are either not applicable or estimated by Mycelium.
- 1 Purchased goods & services
- 2 Capital goods
- 3 Fuel & energy related activities
- 4 Upstream transportation & distribution
- 5 Waste generated in operations
- 6 Business travel
- 7 Employee commuting
- 8 Upstream leased assets
- 9 Downstream transportation & distribution
- 10 Processing of sold products
- 11 Use of sold products
- 12 End-of-life treatment of sold products
- 13 Downstream leased assets
- 14 Franchises
- 15 Investments
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
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See the scope breakdownProvenance
Emissions
Factors
0.219
kgCO2e / £
Supplier specific emission factors (kgCO2e / £)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
0.012
0.012
Upstream
+ upstream Scope 3
0.161
0.160
Total
+ all Scope 3
0.219
0.202
Scope 2 in these factors uses the company's market based figure.
Which figure should I use?
Comparing companies? Use Total Modelled. It is the most complete like-for-like view: any categories the company has not disclosed are filled with industry-typical estimates, so a transparent company is not unfairly penalised against one that simply has not reported.
Estimating your own supply-chain emissions from spend with this company? Use Upstream Modelled. The GHG Protocol defines purchased-goods emissions as cradle-to-gate, which means this company's own operations plus its upstream supply chain. The Total figure also includes downstream emissions, such as the lifetime use of the products this company sells, which the GHG Protocol attributes to the users of those products rather than to customers buying goods and services.
Reported counts only emissions the company has filed itself. A blank or low Reported cell does not mean those emissions do not exist, just that the company has not disclosed them. When Reported sits close to Modelled, that is a positive signal: the company has disclosed most of its salient emissions.
Sustainability
Snapshot
Based on reported data, retrieved with AI
- British American Tobacco p.l.c. reported 5,079,000 tCO₂e in 2025.
- Scope 3 accounted for 95% of emissions.
- Reported across 12 of 15 GHG Protocol Scope 3 categories.
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, British American Tobacco p.l.c. reported total yearly emissions of 5,079,000 tCO₂e in 2025. Scope 3 emissions accounted for 95% of the footprint, indicating supply chain activity, purchased goods and services, business travel, and wider operational dependencies were the most significant contributors to the company's carbon footprint.
The company achieved a Mycelium Score of 8.0, placing it among the leaders in its sector for sustainability performance, and received a transparency score of 92.5, an exceptional result, reflecting open disclosure across nearly every key emissions metric.
Scope
breakdown
Scope 1 emissions
Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.
Scope 2 emissions
Indirect emissions from purchased energy, including electricity, heating and cooling.
Location based
293,000
tCO2eMarket based USED IN TOTAL
67,000
tCO2eScope 3 emissions
Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.
Cat 1
Purchased goods & services
3,038,000
tCO2eCat 2
Capital goods
57,000
tCO2eCat 3
Fuel & energy related activities
152,000
tCO2eCat 4
Upstream transportation & distribution
324,000
tCO2eCat 5
Waste generated in operations
2,000
tCO2eCat 6
Business travel
89,000
tCO2eCat 7
Employee commuting
59,000
tCO2eCat 8
Upstream leased assets
39,384
tCO2eCat 9
Downstream transportation & distribution
16,000
tCO2eCat 10
Processing of sold products
227,934
tCO2eCat 11
Use of sold products
240,000
tCO2eCat 12
End-of-life treatment of sold products
119,000
tCO2eCat 13
Downstream leased assets
147,443
tCO2eCat 14
Franchises
0
tCO2eCat 15
Investments
694,000
tCO2e3 values were derived via Mycelium's normalisation process rather than reported by the company. A cell marked “ESTIMATED” is a figure the company did not disclose, modelled by Mycelium. Cells marked “–” were not disclosed and could not be modelled.
Verification
Independent third parties involved in checking or preparing British American Tobacco p.l.c.'s emissions data.
Independent assurance
Independently assured (limited assurance) by KPMG LLP for 2025
Climate targets
Net zero pledge
Net zero target
By 2050
Near-term target
by 2030
As stated in British American Tobacco p.l.c.'s 2025 report.
Science Based Targets initiative
Near-term target
Targets set (1.5°C), target year 2030
Long-term target
Targets set, target year 2050
Net zero
Targets set, by 2050
Source: Science Based Targets initiative, Companies Taking Action.
Climate initiatives
Schemes and standards British American Tobacco p.l.c. has joined to disclose, cut and verify its emissions.
Contact Info
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How scoring works
How the Mycelium Score is calculated
The Mycelium Score is out of 10. Up to 6.5 points reflect carbon intensity vs sector peers (emissions normalised against revenue), scaled by how transparent the reporting is. The band above 6.5 is earned through verified data quality on a claimed profile: declaring every reporting category yourself (up to 2.0), preparation by a carbon accountant (2.0) and independently audited figures (2.0), capped at 10.
A higher score means lower carbon intensity than sector peers, backed by data that's third-party verified, claimed by the company, and fully disclosed. British American Tobacco p.l.c.'s score sits at the top of this page and in the score panel.
How the Transparency Score is calculated
The Transparency Score is the share of a company's estimated footprint that it reported itself, graded from A (very high) down to F (very low). Where a category is missing, Mycelium models what it would hold for a company of that size and industry and counts it as undisclosed, so an unreported category where the bulk of emissions sit hurts far more than a minor one. A Scope 3 total filed without a category breakdown earns very little credit for the part left unattributed, because it does not show which categories are inside it: a company can count business travel, leave purchased goods out entirely, and the total looks the same. Companies with nothing to model are graded on how much of their industry's typical footprint the reported categories cover.
For British American Tobacco p.l.c., the single biggest gap is Processing of sold products (Scope 3 Category 10). Mycelium estimates it accounts for around 4% of the company's total footprint, typically the largest source of emissions for a Food, Beverage, & Tobacco company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
Other material categories British American Tobacco p.l.c. hasn't disclosed:
- Downstream leased assets (Scope 3 Category 13), around 3% of the estimated footprint
In total, roughly 7% of British American Tobacco p.l.c.'s estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.
Read the full scoring methodology
Our white paper covers exactly how the Mycelium Score and Transparency Score are calculated, including the normalisation process and what earns a 10/10.
Download the white paper (PDF)
British American Tobacco p.l.c. carbon emissions FAQs
What are British American Tobacco p.l.c.'s carbon emissions?
In its 2025 reporting year, British American Tobacco p.l.c. disclosed total emissions of 5,079,000 tCO2e across all scopes. Including Mycelium estimates for undisclosed categories, the adjusted total is 5,493,761 tCO2e. Scope 3 accounted for the largest share, around 95% of the total.
Does British American Tobacco p.l.c. report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, British American Tobacco p.l.c.'s available disclosure covers Scope 1 (222,000 tCO2e), Scope 2 (67,000 tCO2e), Scope 3 across 12 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is British American Tobacco p.l.c.'s emissions reporting?
British American Tobacco p.l.c. has a Mycelium transparency score of 92.5 out of 100. The score is the share of the company's estimated footprint that it reported itself, so an undisclosed category where most of its emissions sit weighs far more than a minor one.
Is British American Tobacco p.l.c. sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. British American Tobacco p.l.c. has a Mycelium Score of 8 out of 10, which reflects its emissions intensity against sector peers together with how transparent and well-verified its reporting is. The emissions figures, disclosure documents and climate targets on this page give the fuller picture.
Is British American Tobacco p.l.c. environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. British American Tobacco p.l.c. disclosed 5,079,000 tCO2e for 2025, and its Mycelium Score of 8 out of 10 shows how that performance compares with similar companies in its sector.
Learn more about our methodology and where this data comes from.
