Aston University sustainability score: 52/100
Better than 56% of Higher Education / Universities
Leading practice starts at 60. The highest score on SINK is 71.
Aston University is a mid-sized UK higher education institution, located in Birmingham city centre. The university serves students and operates a single urban campus focused on business, engineering, and applied sciences.
More about Aston University
It is ranked in the top 30 UK universities by research income.
Head office GBStaff 1,595 FTE (HESA EMR 2023/24)Revenue £227M (HESA EMR 2023/24)Website ↗
Aston has strong operational carbon data and a credible 2028 net-zero commitment backed by a £35.5m funded energy centre project. Supply chain emissions remain poorly mapped, renewable energy penetration is minimal at ~11%, and Scope 3 methodology gaps are acknowledged. No SBTi validation weakens target credibility.
Aston University scores 52/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified September 2026.
That places Aston University joint 109th of 1,023 companies scored, and joint 26th of 67 in Higher Education / Universities.
What is Aston University doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Controversies & Red Flags (8/10, 8/10). Weakest on Energy Source and Nature & Biodiversity Impact (3/10, 3/10).
Where Aston University lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
What would raise this score
- How clean its energy isMove to a renewable energy tariff or make a major efficiency investment.
- Its effect on natureAssess its effect on nature and publish a basic environmental policy.
- Its effect on waterMeasure its water footprint and set reduction targets.
Every question that lost points
- Emissions from its own operations8/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain5/10Most of its supply-chain (Scope 3) emissions aren't measured.
- Whether its emissions are falling7/10No consistent fall over several years across its operations and supply chain.
- How clean its energy is3/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature3/10No assessment of its effect on nature, and no basic environmental policy.
- How it uses materials and handles waste5/10No measurable waste or recycling targets reported publicly.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets5/10Its targets aren't science-based or committed to the Science Based Targets initiative.
- How openly it reports7/10No annual impact report, or no pay linked to climate targets.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Aston University's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Aston University's score based on?
16 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
63% of them were published by Aston University itself; the rest come from independent sources.
“Environmental information for UK higher education providers is collected as part of the Estates management record”
“2023/24: 791.74 [Scope 1] · 3,959.83 [Scope 2] · 4,751.57 [S1+2] · 32,028.00 [Scope 3]”
“successfully retaining its ISO 14001 and ISO 50001 certifications... confirmed the university's EcoCampus Platinum status”
“Of the 136 HE providers who submitted data for the past two years, 96 (71%) saw a decrease in emissions”
“Since 2022, Aston University has significantly expanded its renewable energy capacity through the installation of 607 photovoltaic (PV) solar panels”
“The Carbon Neutral Energy Centre will feature ground and air source heat pumps in place of the current gas-fired system”
“Wildlife habitats expanded with bird boxes, bat boxes, bug hotels, and wild gardens”
“enhancing ISO 14001 and ISO 50001 systems, cutting carbon emissions and energy use... supporting biodiversity”
“cut carbon emissions by 3,835 kg and donated 2,208 kg of office furniture to underserved communities, supporting circular economy principles”
“Aston is seeking to procure waste management services”
“In 2024/25 we have consumed 4.6 m3.y-1.FTE-1, 34.4% above our target of 3.4 m3.y-1.FTE-1 for the period”
“Aston will be net zero by 2028 for scope 1 and 2 emissions – two years ahead of schedule”
“Scope 1 and 2 emissions will be reduced by over 90 per cent from the 2005/06 baseline”
“The task of overseeing progress of our Sustainability Strategy... lies with our Sustainability Strategy Steering Group (SSSG). Chaired by our Chief Operating Officer”
“Aston University has signed the Environmental Sustainability Concordat, a landmark sector-wide agreement”
“This includes our target of achieving net zero greenhouse gas emissions from the Aston University estate by 2030”
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How does Aston University compare with other higher education / universities companies?
Where Aston University sits among higher education / universities peers.
Among the 67 major higher education / universities brands we've scored, Aston University is tied =26th of 67, with 4 others.
Who scores higher in Higher Education / Universities?
The 3 companies in the sector scoring nearest above Aston University.
Loughborough has published specific decarbonisation targets and joined the Nature Positive Universities Alliance, but lacks independent validation of climate goals and Scope 3 quantification.
See the breakdown →Cardiff Met has reduced Scope 1+2 emissions 60% since 2005 and holds ISO 14001 certification, but supply chain mapping remains incomplete and recycling lags sector targets at 49%.
See the breakdown →Anglia Ruskin has achieved measurable carbon reductions (40% absolute Scope 1+2 vs 2005) and secured zero-carbon electricity via power purchase agreement.
See the breakdown →Which companies moved this week, and why.
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