It’s like a heat wave, burning in my heart.
I can’t keep from crying. It’s tearing me apart
                      Martha Reeves & The Vandellas

We have just returned from Northumberland, where—for a few days—it was blessedly cool. After that, it went into the 80s, and on the ride home, I noticed, just as we were reaching London, that the car’s thermometer read 95 degrees, or 35 C. While I expect the motorway was a bit hotter than the surrounding countryside, that’s still hot, no matter if you f...