Of the many stories I heard about the drought while I was in
Brazil earlier this month, one stands out. A colleague was riding
the elevator in her building and saw a note from a concerned
neighbor. "Dear neighbors," the note read. "As you know, we are in
a severe crisis. Everyone must do their part to conserve water.
That is why I have decided to only wash my car once per month. I
hope everyone else can make a similar sacrifice." I had just spent
five days in São Paulo,...
