"Hurricane Harvey is drowning southeastern Texas for the fourth day, putting a vast area under feet of water. Experts say Harvey has been stuck longer in one place than any tropical storm in memory. That is just one of the hurricane’s extremes; the storm is off the charts by many measures. Scientific American wanted to learn why, and we asked meteorologist Jeff Masters for help."
"Here is the most logical way to view his pardon of Sheriff Arpaio: It is the latest and gravest step he has taken in his continuing efforts to undermine the rule of law. Obviously Trump delighted in fueling the racism of Arpaio’s supporters by pardoning this convicted criminal — he made that clear earlier this week during his repellent speech in Phoenix. But I am certain that is not the main reason for this heinous act."