The whole world being a couple degrees hotter is not guaranteed to be equally distributed. The reason why Latvia, and most of "Northern" Europe is livable instead of a frozen wasteland is due to climate mechanisms that we're not entirely sure how sensitive they are to climate change

It might get a bit warmer, it might get a lot hotter or it might even get a whole lot colder

Climate change is a better term because the change itself is unpredictable and likely damaging in the short term