Small drops form on my forehead. Slowly, they make their way down along my temples. The weather app on my phone shows a red alert. For days, I have been caught in the so-called heat wave that swept across Europe in June of this year. Unfortunately, what slowly drips from the edge of my chin is neither refreshing rain nor cool water – it’s my own sweat. Yet, I am not the only one struggling under the weight of the heat. The servers and chips inside the data centers are suffering, too. (read more...)