98% of a Construction Firm’s Emissions Sit in Its Supply Chain Artwork

Climate Confident - Practical Climate Solutions That Cut Emissions

Climate Confident is for business leaders, climate professionals and policymakers who need to understand what is actually cutting emissions—and what it takes to make those solutions work at scale.

Each Wednesday, technology and sustainability analyst, keynote speaker and former SAP Global VP Tom Raftery speaks with the executives, engineers, scientists, founders and policymakers turning climate ambition into measurable progress. Together, they examine the technologies, business models, policies and implementation strategies reshaping energy, transport, industry, supply chains, food and finance.

These are not conversations about distant targets, vague pledges or greenwash. They are candid discussions about what is working, what is failing, where the real bottlenecks lie, and how leaders can make better decisions about decarbonisation, resilience, investment and risk.

You will hear:

Proven approaches to reducing emissions
Hard-earned lessons from real-world implementation
Analysis of the markets, technologies and policies driving the transition
Honest examination of costs, trade-offs, setbacks and unintended consequences
Practical ideas for turning climate commitments into action

New episodes are published every Wednesday at 7am CET. Subscribers also receive bonus episodes featuring highlights, analysis and emerging themes from across the series.

Follow Climate Confident for practical climate solutions, informed debate and the insights you need to turn ambition into measurable progress.

Guest suggestions and feedback are welcome at Tom@tomraftery.com.

All Episodes

Climate Confident - Practical Climate Solutions That Cut Emissions

98% of a Construction Firm’s Emissions Sit in Its Supply Chain

August 19, 2026 • Tom Raftery • Season 1 • Episode 290

0:00 | 37:07

Get in touch - leave me a message

At John Sisk & Son, up to 98% of company emissions sit in the supply chain. That changes the decarbonisation problem completely: the biggest levers are often not on the construction site, but in what gets bought.

I speak with Keith O’Flynn, Group Supply Chain Sustainability Manager at Sisk, about what that means in practice for one of Ireland’s largest contractors. When concrete and steel dominate purchased-goods emissions, procurement decisions become climate decisions — but thin margins, imperfect carbon data and established standards can slow change.

We examine why low-carbon concrete can deliver major embodied-carbon reductions yet still struggle to scale, what makes cleaner steel harder to source, and why spend-based Scope 3 accounting can give companies a dangerously fuzzy picture of their footprint. We also look at the tension between commercial reality and the growing demand from clients for demonstrably lower-carbon projects.

Listen now to understand where construction’s Scope 3 emissions really sit — and what has to change if companies are serious about cutting them.

Support the show

Podcast subscribers
I'd like to sincerely thank this podcast's amazing subscribers:

Anita Krajnc
Cecilia Skarupa
Ben Gross
Jerry Sweeney
Andreas Werner
Stephen Carroll
Roger Arnold

And remember you too can Subscribe to the Podcast - it is really easy and hugely important as it will enable me to continue to create more excellent Climate Confident episodes like this one, as well as give you access to the entire back catalog of Climate Confident episodes.

🎤 Looking for a keynote speaker on climate, energy, AI, or sustainability?

I help executive audiences understand the technologies, trends, and decisions shaping the low-carbon transition.

Download my Speaker Pack: https://tinyurl.com/spkrpck

And a quick note before you go: I’ve started a new Reddit community for serious, evidence-led discussion on climate solutions, clean energy, decarbonisation, policy, technology, and what actually works in practice.

If you’d like to suggest future guests, challenge ideas from the show, or share climate reports and solutions worth discussing, join us at r/ClimateConfident