Obviously global warming is a problem. But it always bugs me when they say things like "hottest day ever recorded!" And then you look at the graph and it's only since 1979.
What I'm saying is that's when that particular recording began. We've surely measured temperature and recorded it before 1979. So it's the hottest day in the history of that particular recording. Not necessarily the hottest day ever recorded in the history of man kind as the article title makes it sound.