I'll answer that question at the beginning.  NO!  I've long felt that someday, some cataclysmically hot summer will finally convince the world to be serious about global warming.  While there is no doubt temperatures are continuing to go up, this summer is not showing that decisive sign. Sure, London finally hit 104F, the highest in recorded history.  I remember I one day landed at Heathrow when the temperature was only 100F.  And there were problems.  I went on to Dublin, and it was only 98F, but the hot topic of the day there was a warning for farmers to place sunblock on cow udders.   To quote : Of course, I thought about protecting myself, too, so I went to a department store but couldn’t f ind any for humans. After much scurrying around, I finally was able to purchase a small tube of Johnson and Johnson for a ridiculously high price. It went on fine, although it seemed to stain everything white, but just wouldn’t come off, even with soap. I think I bought something for cow