I largely don't find that surprising. Industry and mechanical activity (cars) cause direct warming - see "urban heat islands", "weekend temperature effect", and as a bonus the "weekend ozone effect". The latter two aren't necessarily as consistent as the former.

But what I do find surprising is

>A separate study by an international team of researchers found that data centers outside urban centers raised the surrounding area’s temperature by 2 degrees Celsius on average and, in some cases, by up to 9 degrees Celsius.

9 degrees F would be already be wild, but 9 C sounds crazy! I wish I could figure out what source they were talking about, but I haven't been able to.