Overstory
Measuring the light

Insights
Guides and reports you can use on Monday.
What we learn on client work, written down plainly: how to count, how to set a target and what to do first.
The library
Everything we have written down.
6 pieces
Report12 May 2026 · 9 minImpact report 2025: 2.1 million tonnes, counted twiceWhat our clients cut last year, how we measured it and where we were wrong.
Insight28 April 2026 · 6 minStart with Scope 3, even though it is the hard oneWhy the largest part of the footprint should not wait for a perfect Scope 1.Read
Guide9 April 2026 · 8 minHow to set a target your board will actually signThree pathways, one page of cost, and the question every finance director asks.Read
Guide20 March 2026 · 7 minPower purchase agreements in plain languageWhat you are buying, what can go wrong and which clauses matter.Read
Insight2 March 2026 · 5 minLand is the quiet half of the footprintSoil, hedges and peat can move a food company's number more than its factory.Read
Insight11 February 2026 · 4 minWhat a winter site audit finds that a summer one missesHeat leaks, idle compressors and the boiler nobody switches off.Read
The library
Everything we have written down.
6 pieces
Report12 May 2026 · 9 minImpact report 2025: 2.1 million tonnes, counted twiceWhat our clients cut last year, how we measured it and where we were wrong.
Insight28 April 2026 · 6 minStart with Scope 3, even though it is the hard oneWhy the largest part of the footprint should not wait for a perfect Scope 1.Read
Guide9 April 2026 · 8 minHow to set a target your board will actually signThree pathways, one page of cost, and the question every finance director asks.Read
Guide20 March 2026 · 7 minPower purchase agreements in plain languageWhat you are buying, what can go wrong and which clauses matter.Read
Insight2 March 2026 · 5 minLand is the quiet half of the footprintSoil, hedges and peat can move a food company's number more than its factory.Read
Insight11 February 2026 · 4 minWhat a winter site audit finds that a summer one missesHeat leaks, idle compressors and the boiler nobody switches off.Read
The library
Everything we have written down.
6 pieces
Report12 May 2026 · 9 minImpact report 2025: 2.1 million tonnes, counted twiceWhat our clients cut last year, how we measured it and where we were wrong.
Insight28 April 2026 · 6 minStart with Scope 3, even though it is the hard oneWhy the largest part of the footprint should not wait for a perfect Scope 1.Read
Guide9 April 2026 · 8 minHow to set a target your board will actually signThree pathways, one page of cost, and the question every finance director asks.Read
Guide20 March 2026 · 7 minPower purchase agreements in plain languageWhat you are buying, what can go wrong and which clauses matter.Read
Insight2 March 2026 · 5 minLand is the quiet half of the footprintSoil, hedges and peat can move a food company's number more than its factory.Read
Insight11 February 2026 · 4 minWhat a winter site audit finds that a summer one missesHeat leaks, idle compressors and the boiler nobody switches off.Read

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.