SEF News-Views Digest No. 168 (4-26-17) Clifton Ware, Editor-Publisher Perhaps you’ve noticed that this newsletter is no longer being issued weekly, but every other week. I’ve pondered some options, questioning if the EROEI (energy returned on energy invested) makes this project tenable long term. I’ll probably continue producing it on alternate weeks, or perhaps periodically, … Continue reading Dear Readers . . . – SEF News-Views Digest
↧