Can you have a zero carbon building? The answer is “no”. With John Butler (Sustainable Build Consultancy; CAT)

If you’re looking to understand how to approach carbon accounting in the built environment, we’ve got you. Brought in to tackle some big questions around accounting for carbon we were joined by sustainable building expert John Butler. 

Jeff’s been talking about getting John on for ages, for reasons he explains in the episode, and when we caught sight of an article he’s co-authored for the next issue of Passive House Plus we realised that we had the perfect excuse.

John provides us with a lot of experience and context for understanding the subject. It’s a nerdy episode too, in a good way, so it may bear a few listens because we cover a lot in an hour. 

We start with a discussion of the process of creating the underlying EPD data for straw and go from there, through making net calculations, accounting for carbon stored in buildings, institutional guidance, concrete and carbonation. 

Notes from the show

• John on LinkedIn 
• John's Sustainable Build Consultancy website
• The RICS Whole Life Carbon methodology
• The LETI Climate Emergency Design Guide

Last call for Retrofit Reimagined
If you're near Glasgow on 11 November, go!

**SOME SELF-PROMOTING CALLS TO ACTION**
We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.

• Jeff, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User Experience
• Follow us on the Zero Ambitions LinkedIn page
• Subscribe and advertise with Passive House Plus (UK edition here too)
• Check Lloyd's Substack: Carbon Upfront
• Join ACAN
• Join the AECB 
• Join the IGBC
• Check out Her Own Space, the renovation and retrofit platform for women (but not in a patronising way)

**END OF SELF-PROMOTING CALLS TO ACTION**