It is currently much warmer than usual in the south of the USA, and it is also far too mild in parts of Antarctica. And in Greece up to 43 degrees Celsius are expected. How the high temperatures come about and where they are particularly extreme.
True, the heat in Texas and Arizona is unusual and very threatening for people. But if you look at a map of weather anomalies around the world right now, the southern US isn’t necessarily the first thing that catches your eye. Large parts of the earth are currently much warmer than usual at this time of year.