Have you noticed? It’s getting pretty wacky out there: joggers bumping into street signs while texting. People seem generally stressed, not that this is new, just more, and it shows. The ice sheets are melting. Some predict “stratification” of the polar oceans will trigger a slowdown or even eventual shutdown of the circulation in the Atlantic Ocean and a weakening of another circulation system in the southern ocean. Isn’t a ‘shutdown of circulation’ what happens in a heart attack - of the planet?