It's just a fact, not an analysis: sometimes, in the past, there were episodic heat waves. They aren't related to the ones we're having now (having the same ca

It's just a fact, not an analysis: sometimes, in the past, there were episodic heat waves. They aren't related to the ones we're having now (having the same causes, having the same impact, nor having the same scrutinity). But, nonetheless, they happened, and we haven't the same ammount of details to know if they were precedeed by hot years (like we're having right now) or they happened without any anormaly in the previous winter/summer.