Barnabas Calder
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barnabascalder.bsky.social
Barnabas Calder
@barnabascalder.bsky.social
Historian of #architecture and #energy, at University of Liverpool School of Architecture. Author of Architecture: From Prehistory to Climate Emergency (Pelican, 2021), and Raw Concrete: The Beauty of Brutalism (William Heinemann, 2016).
Quite right!!
November 15, 2025 at 9:19 AM
Yes, that makes sense. But giving the bald figures is the first thing: this cost x kWh to build, and y kWh to run the way we're running it in practice. Those are knowable, clear figures we need to reduce.
November 15, 2025 at 9:00 AM
Interesting - thank you!
November 15, 2025 at 8:06 AM
Interesting!
November 12, 2025 at 8:23 PM
Here's my crap snap from yesterday night. Sorry it's quite so bad. My phone isn't a great camera these days.
November 12, 2025 at 8:08 PM
Thank you! Your ability to track stuff down is genuinely remarkable.
November 12, 2025 at 7:43 PM
Me too. Since it's my first train it's the least likely to have issues from an earlier one going wrong. It's the Eurostar that I'm more nervous about in this direction.
November 12, 2025 at 7:02 PM
I'll be taking a train back through Flensburg that day, so if you're holding the parade on the site of your victory I'll drop in.
November 12, 2025 at 6:52 PM
You can have all my winnings from the old Twitter WhatBuilding competition, bar the mug which I'll keep.
November 12, 2025 at 6:51 PM
I agree about the Town Hall. I was waiting a couple of hours there thanks to a nocturnal missed connection, so had a good pootle round.
November 12, 2025 at 6:49 PM
Yes, a lovely bit of good news.
November 12, 2025 at 6:40 PM
Oh my WORD! HOW DID YOU GET IT???
November 12, 2025 at 6:38 PM
Who needs a deadline when you're all having such fun?? ;)

Bruce Peter might manage it if he were on Bluesky.
November 12, 2025 at 6:19 PM
Yes, probably. I did that whilst rather tired. Glad to hear you've been bashing yourself on it. ;) What countries have you tried?
November 12, 2025 at 11:27 AM
Not so far it isn't. We're still full on fossil fuelism.
October 14, 2025 at 10:02 PM
Yes. And the really troubling thing about beauty BS is that it's another weapon in the armoury for those arguing for endless demolition and replacement. Who cares if an existing building isn't in the style you happen to cling to sentimentally? It's tens of thousands of tonnes of CO2 to replace it.
October 14, 2025 at 6:56 AM
Thanks Lloyd - I'm so glad you enjoyed it and found it useful. @florianurban.bsky.social's data sets are amazing, aren't they!
October 13, 2025 at 1:31 PM