Keyboarding Skills and Environmental Awareness

When I took beginning typing class in high school, back in the days when the IBM Selectric was all the rage, our teacher's favorite practice lesson was to have us type the following ditty (at least this is the way I remember it) interminably:

The quick brown fox jumped over the lazy dog's back

As an alternative, I would like to suggest the following exercise for teaching key-boarding skills and raising environmental awareness at the same time:

Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.
Now is the time for all good men and women to come to the aid of their environment.