Climate change is making itself felt in disagreeable ways above all in summertime: Average temperatures are rising and heat waves are becoming increasingly common and lasting longer. People are consequently avoiding staying outdoors for lengthy periods, so significantly impairing their quality of life. But that’s not all: Heat makes many people ill and the resulting number of deaths is shown to be rising in long-term comparisons. This is why it is so important to offer people high levels of comfort in summer. And this is possible! There’s a whole lot we can do.