Item of General Interest
See my page PDFs of Posts for a list of printable posts (without comments) since 2014. At the bottom of the Page, a list of PDFs of Presentations is also shown.
Tag Archives: top soil
The tie between energy supply, population, and the economy goes back to the hunter-gatherer period. Hunter-gatherers managed to multiply their population at least 4-fold, and perhaps by as much as 25-fold, by using energy techniques which allowed them to expand … Continue reading