Heatwave Monday, 18 July 2022, Tisha Hagland and I made lunch for 10 architecture students from the University of Idaho. They were in Oxford for their summer school, and I invited them to my ecohouse for lunch so they could avoid the high midday temperatures in the heatwave.

Arriving at 1.30pm, the relief on their faces was clear as they walked from the 36ºC outside into the 21ºC in my dining room. “Thank goodness you have air-conditioning!” said one student. “No,” I replied, “I designed this house to withstand heatwaves and I will tell you how I did it.”

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