solar still
By C Kohn, Waterford WI. “It's inevitable. But just how soon will [oil] become so scarce and expensive that we're forced to make hard choices about how.
2013-11-27 The Calvert Gazette
![By C Kohn, Waterford WI. “It's inevitable. But just how soon will [oil] become so scarce and expensive that we're forced to make hard choices about how.](https://static.fdocuments.net/doc/330x215/56649da15503460f94a8dc17/by-c-kohn-waterford-wi-its-inevitable-but-just-how-soon-will-oil-become.jpg)
