1.   And that population is getting richer.

2.   As the population gets older and larger, Medicare gets bigger and costlier.

3.   As the population gets older, more drugs get consumed.

4.   But absorbing such a flow creates its own problems, and eventually the immigrant population gets older like everybody else.

5.   But now some of those wide-open spaces are getting less open, and the sparse population is getting less sparse.

6.   Half the adult population eventually gets cancer.

7.   No one planned for the day when oil would be cheap and a growing population would get expensive.

8.   The population is getting older.

9.   The remaining population gets older.

10.   The population has gradually gotten older, tribal elders say.