UK gov’s 2025 carbon emission conversion factors
10 June 2025
10 June 2025 The UK gov has published the 2025 carbon emission conversion factors. You can use numbers like these (or from sources like Climatiq) to
Is it harder to make people mask than change their clocks twice a year?
29 May 2025
29 May 2025 Change at scale is hard. Here’s a reckon: if a desired change is strongly associated with people’s identity, or if it is embodied in the
Do the AIs know their carbon emissions? No.
8 May 2025
8 May 2025, updated 11 June 2025 Can the big AIs tell you what their carbon emissions are? On the whole, not really because no-one discloses
Carbon.txt
25 April 2025
25 April 2025, updated 11 Jun 2025 Carbon.txt is a service by the Green Web Foundation which lets you declare your organisation’s sustainability
You serve as a human firewall. So be a hero.
4 April 2025
4 April 2025 Infinigate/KnowBe4’s corporate security training is quite poetic. 00:00:09 Because remember—as an employee, 00:00:11 you serve as a
Ripple Energy is going bust, but the wind farms are still spinning
27 March 2025
27 March 2025 Ripple Energy is in administration, but the windfarm co-ops its platform helped set up are still running. How it works: A wind farm
Transferring a SIPP from Vanguard to InvestEngine
16 March 2025
16 March 2025 In December 2024 Vanguard announced a change to their pricing model: from %-of-portfolio fee to a 4/month fee for portfolios under
There’s a deadline coming up for state pension top ups: 5th April 2025
10 March 2025
10 March 2025 Anna and I wrote a Checksies about whether you should act urgently to beat a deadline for making manual topups to your state pension.
Multiple suppliers, start at home: 2 useful energy experiments
6 March 2025
6 March 2025 Both of these energy experiments sound really useful. And I love that they’re grounded in experiment, rather than confidently assuming
Content design style guides
20 February 2025
20 February 2025 Content style guides that are written for every audience (because government’s audience tends to be all of its citizens), or have
Yes, wind farms sometimes make less energy during big storms
27 January 2025
27 January 2025 More wind means more energy, except when the wind farm equipment must be protected or the grid balanced. Generators manage turbines
Some UK fintech metrics
16 January 2025
16 January 2025, updated 19 May 2025 A messy spreadsheet: Metrics for UK retail investment/saving/digital wealth fintechs. I’ve been collecting
Working notes: carbon emissions of AI
7 January 2025
7 January 2025, updated 11 June 2025 AI is here to stay. And AI is famously compute-intensive, which means it’s energy-intensive, which means its
Radical Co-op membership
11 December 2024
11 December 2024 James Darling’s A Proposal to Transform Co-op Membership for the Internet Age is great. My favourite bits - local, community
3 reasons to start with words
12 November 2024
Organisations know they want to change, but they often assume that the only way to change is to do a big technology project. They call in some big
Forms are temporary, class is permanent - Sport England
21 October 2024
21 October 2024, updated 26 November 2024 In autumn 2023 I worked in a team at FF Studio to design and build a tactical, invite-only fund for Sport
A quick way freelancers can guestimate their carbon emissions
8 October 2024
8 October 2024, updated 10 June 2025 If you’re a freelancer in knowledge working and you often work from home, here’s a quick way to guestimate your
Show them it’s here already
4 September 2024
My proposals and invoices now include carbon emissions data, because even the smallest public acts might encourage others to take action too. My
Rams: The time of thoughtless design for thoughtless consumption is over
3 June 2024
3 June 2024 These screengrabs are from Gary Hustwit’s documentary Rams and its trailer video. If the video is paywalled, there are a couple of clips
9.79 tonnes CO2e per year
17 May 2024
17 May 2024, updated 25 October 2024. My company’s total carbon emissions are 9.79 tonnes CO2e per year, for the year 1 March 2023 - 29 February
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