On Running in the Evening During a Heatwave

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Rationally it makes sense to go for a run when the sun is setting because the heat from the sun is lower. In theory this means that the body is dealing with a cooler environment.

In practice, when I go for evening rides and runs my body remains warm for hours, and that heat, during a heat wave, in a minergie building makes it unbearable.

For a few days it was cooling, and I had stopped using fans. I questioned why. I suspect that it is because when the building is exposed to heat wave temperatures for several days the air heats, but eventually the buildings’ structure begins to radiate its own stored heat energy. This means that you’re dealing with hot air, which isn’t bad. It’s when the building becomes a radiator that it becomes unpleasant.

When I was scuba diving the Léman was 5°c from 5-10m down all year round but now it has risen to 6.5°c. In the Alps there are roockfalls that are making rock climbing and hiking dangerous. Near Oechinensee rockfalls were seen heading for the lake.

We see images of England parched and dried up due to there being no rain for over a month.

England, and Europe are much warmer, and drier now. There was a news item about why fountains were turned off around the Vallée de Joux and about the desicated sugarbeet crops.

It’s worth remarking that we’re in a drought, and a heat wave at the same time. It’s hot, and dry. It is a good opportunity for natural history units to document this, so far, exceptional summer.Within two days the temperature should drop.