There's the famous thing that the A&R man from the record company is supposed to do: He's supposed to come into the studio and listen to the songs you've been recording and then say 'Guys I don't hear any singles.' And then everybody falls into a terrible depression because you have to write one.
If we talk about the environment for example we have to talk about environmental racism - about the fact that kids in South Central Los Angeles have a third of the lung capacity of kids in Santa Monica.