“I am at the moment at the Kaisaniemi Weather Station …” Sifting all the recent media and more direct reports of the European heat wave illustrating so starkly our human impact on a global scale, this tweet from Mike Rantanen carried so much heft. A boyish face, a plain patch of measuring equipment … he is there, at the moment, documenting Helsinki’s 33.2 degrees, highest ever since measurement began in 1844. It’s one thing to picture Parisians attempting to cool down, it’s another to picture our Earth’s northernmost realms baking. I halted. I held my head in my hands.