Stop chasing suppliers. Start using these 3 prompts.
The AI prompt pack for Heads of Sustainability who need to make the board case, get suppliers moving, and understand where their emissions actually sit, without the jargon, without the back and forth.
Why Scope 3 is still broken for most organisations
The data is unambiguous. Scope 3 is where the problem sits, where the regulations are pointing, and where most organisations are still stuck. Here is what the numbers say.
Supply chain emissions are on average 26 times greater than direct operational emissions, yet only 38% of businesses are currently measuring their Scope 3 footprint
EcoVadis / IBM-commissioned survey, 2026
of companies cite supplier data availability as their single biggest Scope 3 challenge, ahead of methodology, cost, or internal expertise
EcoVadis State of Supply Chain Sustainability, April 2026
of suppliers feel strongly motivated by their customers to take action on sustainability, meaning 83% of your outreach is probably landing in the wrong way
Sustain 2026 survey findings, EcoVadis
of organisations are still using spreadsheets as their primary tool for tracking Scope 3, which cannot provide the auditability regulators and investors now expect
MIT State of Supply Chain Sustainability Report, 2025
63% of companies have scaled back their sustainability communications. 58% are now prioritising regulatory compliance over voluntary action. Sustainability leaders are under more pressure than ever to show results with the same or fewer resources. Scope 3 is where most of that pressure lands. (Trellis State of the Sustainability Profession, 2026)
The three biggest challenges
Confirmed across edie, Trellis, MIT and the Innovation Forum. Same three problems, every time.
Making the internal business case
The old arguments no longer land the way they used to. CFOs want financial risk language. Procurement want to know what it costs them. Operations want to know what changes. Getting the right people in the room and keeping them there is the challenge that sits above everything else right now.
GreenBiz 26 · Trellis State of the Sustainability Profession, 2026 · Innovation Forum Washington DC Roundtable, Jan 2026
Getting suppliers to actually respond
Most supplier outreach fails because it is written from the buyer's perspective, uses carbon accounting jargon suppliers do not understand, and asks for too much at once. Creating incentives outperforms simple requests for information every time, but most organisations have not made that shift yet.
edie Sustainable Supply Chains Summit 2026 · edie 'Decarbonising Supply Chains Without Greenwash', Sept 2025 · EcoVadis, April 2026
Knowing where to start when the scale is overwhelming
95% of companies have visibility into their Tier 1 suppliers. Only 42% can see into Tier 2 or beyond. Most Scope 3 disclosures are built on approximations. The question sustainability leaders are actually asking is: what do I report on when I cannot possibly collect primary data from every supplier?
EcoVadis Supply Chain Sustainability, April 2026 · MIT Sloan, Feb 2026 · edie 'Inconvenient Truth about Scope 3', March 2026
3 prompts. One per challenge. Use them once.
Developed using SkillSignal™, 15,120 sustainability skills mapped across 12 sectors and 12 departments. Each prompt is written for a Head of Sustainability, not a carbon analyst.
Use this before any internal meeting where you need budget, resource, or board attention for Scope 3 work. You do not need complete data. Even rough estimates or secondary data are enough. The prompt translates what you know into the language CFOs, procurement directors, and operations leads actually respond to: financial risk, regulatory exposure, and competitive position. The biggest Scope 3 challenge confirmed at GreenBiz 26 and by the Trellis 2026 research is not data, it is getting the rest of the organisation to care. This prompt solves that.
A one-page narrative with a clear financial hook in the first sentence, three specific reasons a CFO should care (cost, risk, competitive), a plain-language summary of your current Scope 3 position, and a single clear ask, what you need the board to approve or fund. No carbon jargon. No acronyms without explanation. Something you could read aloud in a three-minute slot at a leadership meeting and have people nodding.
I am Head of Sustainability at [organisation name], a [sector] organisation with approximately [number] employees and [approximate annual revenue] in revenue, operating primarily in [countries/regions]. I need to make the internal business case for investing in Scope 3 emissions work. My audience is [CFO / CEO / Board / procurement director, choose the one that matters most right now]. Here is what I currently know about our Scope 3 picture: - Our estimated Scope 3 footprint: [if you have a number, use it; if not, write "not yet formally measured"] - Our biggest emission sources are likely: [e.g. purchased goods, business travel, logistics. Your best guess is fine.] - We have a [net zero / science-based target / sustainability commitment] that requires us to address supply chain emissions by [year if known] - The regulations most relevant to us are: [e.g. UK SRS / ISSB S2 / California SB 253 / CSRD if you have EU operations / SBTi if you have a target, list what applies] Please write a business case narrative (400 words maximum) structured as follows: 1. The financial hook, open with the commercial or regulatory risk in plain English, no jargon 2. Three specific reasons this audience should care, use cost, risk, or competitive framing, not environmental language 3. What we currently know and where our gaps are, honest, not defensive 4. The single ask, what do I need approved or funded to make progress Write for someone who has three minutes and is more comfortable with a P&L than a carbon inventory.
AI will produce a polished-sounding narrative even with thin inputs. Review every financial figure it generates; if you did not provide a number, the AI may have estimated one. Replace any estimates with honest "we believe approximately" language before sharing with a CFO. Do not let plausible-sounding text substitute for actual data in a board paper.
Sources behind this challenge
- Trellis State of the Sustainability Profession 2026, 63% scaled back communications, internal business case harder to make link →
- Innovation Forum Scope 3 Solutions 2026, building the business case named as critical; finance teams often key blockers link →
- GreenBiz 26 mainstage debate, Feb 2026, "The old arguments don't land the way they once did"
- edie 'The Inconvenient Truth About Your Scope 3 Emissions', March 2026, setting net zero targets without Scope 3 "lacks credibility" link →
- UK SRS final standards published February 2026, mandatory for listed UK companies from 2027, based on ISSB S1/S2
- California SB 253 first Scope 3 reports due August 2026 for qualifying companies
Start with Prompt 3 (hotspot mapping) to understand where your emissions sit. Then use Prompt 1 (board case) to get internal buy-in now you have something specific to say. Then use Prompt 2 (supplier engagement) to start collecting data from the suppliers that actually matter. This is the sequence, not three separate standalone exercises. Each one builds on the previous output.
Three principles for intentional AI use
Context is the multiplier
The more specific detail you put in the brackets, the more specific and useful the output. An organisation that describes its actual business model and real supplier categories gets dramatically better output than one that writes "large company" and leaves it at that. The ten minutes you spend filling in the brackets saves hours of iteration.
First draft, not final answer
These prompts produce outputs that are 70-80% usable on the first attempt. The remaining 20% is your professional judgement, knowledge of your specific relationships, your organisation's risk appetite, and what your assurance provider will scrutinise. Never copy AI output into a regulatory disclosure without review.
Fewer prompts, lower footprint
Every round of AI back-and-forth uses energy and water. A well-structured prompt that gets the result you need in one go uses a fraction of the resources of five rounds of vague iteration. Using AI efficiently is itself a sustainability practice, and it saves your most valuable resource: time.
Five mistakes that make Scope 3 harder than it needs to be
These come up in almost every organisation tackling Scope 3 for the first time. Click each to expand.
AI for Good: what we believe and how we act
We are a sustainability company that uses AI extensively. We think that is the right choice and we want to be transparent about why.
AI is a force for good when it is in the right hands.
The planet does not need less technology. It needs better technology, used by people who are purpose-led, skilled, and ready to lead. That is what we are here to build.
The question is not whether to use AI, it is how.
Used thoughtfully, AI accelerates the transition to a sustainable world. Used carelessly, it produces faster, more confident bad decisions. Fewer, better prompts is the practice.
Good AI starts with good people.
Technology reflects the intentions of those who use it. Upskilling people, not just platforms, is what moves the needle. This guide is part of that commitment.
Anthropic was founded with a mission focused on responsible AI development for the long-term benefit of humanity. Claude runs on Google Cloud and AWS, Google has committed to 100% carbon-free energy by 2030. Independent benchmarking found Claude 3.7 Sonnet delivers strong performance while consuming just 0.84 Wh per query, one of the most efficient leading models available. When we built these prompts using AI, we used the most efficient tool we could find.
From prompts to programmes
These prompts give you tools to work more effectively on your own. For structured learning, peer cohorts, and hands-on facilitation, here is where to go next.
Free Skills Gap Report
Find out exactly where your organisation's Future Skills gaps sit across AI and sustainability. One hour. No cost. Results you can act on immediately.
Get your free reportAI Accelerator
Six live sessions. Peer cohort. One finished AI workflow built around your actual sustainability work by the end. Facilitated, not self-study.
June cohort: 17 Jun – 22 Jul 2026
Register on LumaFor every employee upskilled, we upskill one young person aged 15–25 from a disadvantaged background for free. That is our 1+1 model.
The rest of the series
This is guide one. Each one follows the same format: the evidence behind the challenge, why AI is being used badly, and three prompts that actually fix it.
Scope 3 Data Collection
This guide. Three prompts for Heads of Sustainability who need to make the board case, get suppliers moving, and map their hotspots.
Stakeholder and Board Reporting
How to translate the same sustainability data for a CFO, a board, employees, and regulators. Four audience versions from one prompt.
Regulatory Horizon Scanning
Staying ahead of UK SRS, California SB 253, ISSB, and TNFD without reading every update yourself.
Supplier Questionnaires at Scale
Designing, sending, chasing, and analysing supplier sustainability data when you have hundreds of suppliers and limited resource.
Board and Investor Communications
Structuring your annual sustainability narrative for the audiences that control your budget and your future.
CSRD Double Materiality Assessment
Five prompts for organisations with EU reporting obligations tackling the double materiality assessment for the first time.
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