BERN - Cantonal energy offices said mid-July peaks now include a visible afternoon cooling load in the large cities. Older blocks with small windows and no external shade fare worst. Newer heat-pump systems that were specified for winter heating are not all sized, or legally used, for summer cooling.

The Federal Statistical Office's later heat-pump census, in our September report, will show how fast the stock is changing at the new-build end. July is about the stock that has not changed.

A climate policy you can feel

Emission targets are tonnes. On a Thursday in July they are also a bedroom under the roof in Biel that does not drop below 26 degrees at 2 a.m.