Real sustainability scores. No greenwashing. 500 companies rated 0–100 — one formula, public data, open methodology 🌍
Joined September 2025
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Apr 11
Lots of companies claim to be sustainable.
We built SINK to find out if that’s true.
One formula. Real data. Open to challenge.
Search yours → sinkproject.com
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May 29
We scored every major UK supermarket on sustainability. Co-op leads at 50/100.
ASDA sits alone at the bottom at 34/100.
sinkproject.com/blog/uk-supe…
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May 19
Deutsche Telekom cut emissions 94% since 2017.
BT cut theirs 52%.
BT scores higher.
Same strong targets. Difference shows up in transparency, controversies, and what’s not measured.
Sustainability isn’t one number. It’s a shape.
DT: 45. BT: 55.
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May 18
You've heard of Patagonia.
You've probably not heard of Mossy Earth.
They score higher.
Check out the full breakdown of their sustainability score →
sinkproject.com/company/moss…
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May 17
Yodel has a target to be carbon neutral by 2035.
Its headline figure is a 44% cut in carbon per parcel since 2016. Over the same period, parcel volumes are up 34%.
30/100 on our sustainability index.
sinkproject.com/company/yode…
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Apr 27
Which airlines are actually trying on climate, and which are bluffing?
We scored the majors on emissions, clean fuel plans, and how much they lean on carbon offsets to look good:
•TUI — 29
•Virgin Atlantic — 28
•Jet2 — 28
•Lufthansa — 26
•Cathay Pacific — 25
•American Airlines — 24
•easyJet — 24
•Emirates — 23
•Wizz Air — 23
•Delta — 23
•Ryanair — 23
•United — 21
•Qatar Airways — 20
Same flight, same price? The data’s there.
sinkproject.com
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Apr 27
Why scores differ across airlines:
— Verified science-based targets vs self-set ones
— Renewable energy that covers fuel/operations, not just office lighting
— Honest engagement with offsets vs absolute reduction
Aviation is genuinely hard to decarbonise. But the gap between sector ambition and sector action is wider here than almost anywhere we've measured.
sinkproject.com
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Apr 22
Happy Earth Day to the companies actually doing the work!
Top of the SINK leaderboard today:
🥇 @ecosia — 73
🥈 @MossyEarth — 65
🥉 @triodosuk — 65
Same rubric. Same formula. Same standards as everyone else we’ve scored.
sinkproject.com
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Apr 20
Tim Cook leaves Apple with emissions down 60% since 2015. A real legacy.
John Ternus inherits a harder problem.
Last week’s Environmental Progress Report showed emissions held flat in 2025 — a win in a growth year, but Apple still hasn’t isolated Apple Intelligence’s footprint. Microsoft is up 23% on AI. Amazon up 6%.
Ternus’s test isn’t continuing Cook’s curve. It’s keeping AI from bending it upward.
We’ll be tracking it: sinkproject.com/company/appl…
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Apr 20
Full methodology if anyone wants to redo the math themselves: sinkproject.com/methodology
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Apr 20
Apple’s 2026 Environmental Progress Report dropped last week. Headline: 60% emissions cut since 2015, carbon neutral by 2030.
Our SINK score for Apple: 49/100. “Making progress.”
Not a hit piece. But not the story Apple’s telling either. 🧵
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Apr 20
Interesting tell: in Oct 2025, Apple quietly pulled “carbon neutral” labels from Apple Watch and Mac mini ahead of EU Directive 2024/825, which bans offset-based neutrality claims.
Apple’s legal team reached the same conclusion SINK’s methodology did. Offsets aren’t reduction.
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Apr 20
Apple ranks #90 of 503 companies we’ve scored. Above HP, Cisco, AMD. Below Fairphone (64).
A 49 isn’t failure. It’s what a genuinely well-run 15Mt company looks like when you grade on absolutes, not ratios.
Full score, all 10 questions, every source: sinkproject.com/company/appl…
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Apr 16
One of the world’s most powerful AI companies scores 25/100 on sustainability. Their industry ceiling is 70.
We broke down the gap.
sinkproject.com/company/open…
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Apr 14
SHEIN scores 15/100 on sustainability.
Fast fashion’s worst performer. 26.2Mt CO₂e. Emissions going up, not down.
Last year Italy fined them €1M for greenwashing. The data backs the regulators up.
sinkproject.com/company/shei…
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Apr 13
We scored 16 fashion brands on sustainability.
The gap between the best and worst is 32 points — that’s a real difference in transparency and accountability.
Where does your favourite brand sit? 👇
sinkproject.com/blog/fast-fa…
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Apr 12
We scored 500 companies on sustainability.
Average score: 38/100.
No company has broken 75.
Fast fashion scores 15.
The ratings industry told you these companies were leaders.
One formula. Real data. Open to challenge.
sinkproject.com/blog/we-scor…
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