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: crude oil
Our economy runs on oil. Most of the tractors used for growing food run on oil. Nearly all of today’s cars and trucks run on oil. It is popular to talk about changing to some other fuel, but the practicalities … Continue reading